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WO2005070885A1 - Bis bicyclic amides as vanilloid receptor ligands and their use in treatments of inflammatory and neuropatic pain - Google Patents

Bis bicyclic amides as vanilloid receptor ligands and their use in treatments of inflammatory and neuropatic pain Download PDF

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Publication number
WO2005070885A1
WO2005070885A1 PCT/US2005/002056 US2005002056W WO2005070885A1 WO 2005070885 A1 WO2005070885 A1 WO 2005070885A1 US 2005002056 W US2005002056 W US 2005002056W WO 2005070885 A1 WO2005070885 A1 WO 2005070885A1
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Prior art keywords
alkylor
alkylnr
substituted
alkyl
halo
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PCT/US2005/002056
Other languages
French (fr)
Inventor
Christopher Hulme
Mqhele Vellah Ncube
Mark H. Norman
Vassil I. Ognyanov
Liping H. Pettus
Jiawang Zhu
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Amgen Inc.
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Priority to EP05711838A priority Critical patent/EP1725529A1/en
Priority to AU2005206561A priority patent/AU2005206561A1/en
Priority to CA002553966A priority patent/CA2553966A1/en
Priority to JP2006551329A priority patent/JP2007526910A/en
Publication of WO2005070885A1 publication Critical patent/WO2005070885A1/en

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Definitions

  • NR1 is a non-selective cation channel which is 10 activated or sensitized by a series of different stimuli including capsaicin and resiniferatoxin (exogenous activators), heat & acid stimulation and products of lipid bilayer metabolism, anandamide (Premkumar et al., 2000, Szabo et al., 2000, Gauldie et al., 2001, Olah et al., 2001) and lipoxygenase metabolites (Hwang et al., 2000).
  • NR1 is highly expressed in primary sensory neurons (Caterina et al., 15 1997) in rats, mice and humans (Onozawa et al., 2000, Mezey et al., 2000, Helliwell et al., 1998, Cortright et al., 2001). These sensory neurons innervate many visceral organs including the dermis, bones, bladder, gastrointestinal tract and lungs; NR1 is also expressed in other neuronal and non-neuronal tissues including but not limited to, C ⁇ S nuclei, kidney, stomach and T-cells ( ⁇ ozawa et 20 al., 2001, Yiangou et al., 2001, Birder et al., 2001).
  • Presumably expression in these various cells and organs may contribute to their basic properties such as cellular signaling and cell division.
  • experimentation with capsaicin indicated the presence of a capsaicin sensitive receptor, which could increase the 25 activity of sensory neurons in humans, rats and mice (Holzer, 1991; Dray, 1992, Szallasi and Blumberg 1996, 1999).
  • the result of acute activation by capsaicin in humans was pain at injection site and in other species increased behavioral sensitivity to sensory stimuli (Szallasi and Blumberg, 1999).
  • Capsaicin application to the skin in humans causes a painful reaction characterized not only 30 by the perception of heat and pain at the site of administration but also by a wider area of hyperalgesia and allodynia, two characteristic symptoms of the human condition of neuropathic pain (Holzer, 1991). Taken together, it seems likely that increased activity of NR1 plays a significant role in the establishment and maintenance of pain conditions. Topical or intradermal injection of capsaicin has also been shown to produce localized vasodilation and edema production (Szallasi and Blumberg 1999, Singh et al., 2001). This evidence indicates that capsaicin through it's activation of NR1 can regulate afferent and efferent function of sensory nerves.
  • NR1 gene knockout mice have been shown to reduce sensory sensitivity to thermal and acid stimuli (Caterina et al., 2000)). This supports the concept that NR1 contributes not only to generation of pain responses (i.e. via thermal, acid or capsaicin stimuli) but also to the maintenance of basal activity of sensory nerves. This evidence agrees with studies demonstrating capsaicin sensitive nerve involvement in disease. Primary sensory nerves in humans and other species can be made inactive by continued capsaicin stimulation.
  • Caterina M.J, Schumacher, M.A., Tominaga, M., Rosen, T.A., Levine, J.D., and Julius, D, (1997).
  • the capsaicin receptor a heat-activated ion channel in the pain pathway. Nature 389: 816-824.
  • Caterina-MJ Leffler-A. Malmberg-AB. Martin- WJ. Trafton-J. Petersen-Zeitz
  • NR1 at acidic pH in dorsal root ganglia neurons and cells ectopically expressing
  • the present invention comprises a new class of compounds useful in the treatment of diseases, such as vanilloid-receptor-mediated diseases and other maladies, such as inflammatory or neuropathic pain and diseases involving sensory nerve function such as asthma, rheumatoid arthritis, osteoarthritis, inflammatory bowel disorders, urinary incontinence, migraine and psoriasis.
  • diseases such as vanilloid-receptor-mediated diseases and other maladies, such as inflammatory or neuropathic pain and diseases involving sensory nerve function such as asthma, rheumatoid arthritis, osteoarthritis, inflammatory bowel disorders, urinary incontinence, migraine and psoriasis.
  • the compounds of the invention are useful for the treatment of acute, inflammatory and neuropathic pain, dental pain, general headache, migraine, cluster headache, mixed- vascular and non- vascular syndromes, tension headache, general inflammation, arthritis, rheumatic diseases, osteoarthritis, inflammatory bowel disorders, inflammatory eye disorders, inflammatory or unstable bladder disorders, psoriasis, skin complaints with inflammatory components, chronic inflammatory conditions, inflammatory pain and associated hyperalgesia and allodynia, neuropathic pain and associated hyperalgesia and allodynia, diabetic neuropathy pain, causalgia, sympathetically maintained pain, deafferentation syndromes, asthma, epithelial tissue damage or dysfunction, herpes simplex, disturbances of visceral motility at respiratory, genitourinary, gastrointestinal or vascular regions, wounds, burns, allergic skin reactions, pruritus, vitiligo, general gastrointestinal disorders, gastric ulceration, duodenal ulcers, diarrhea, gastric lesions induced by
  • the invention also comprises pharmaceutical compositions comprising the compounds, methods for the treatment of vanilloid-receptor-mediated diseases, such as inflammatory or neuropathic pain, asthma, rheumatoid arthritis, osteoarthritis, inflammatory bowel disorders, urinary incontinence, migraine and psoriasis diseases, using the compounds and compositions of the invention, and intermediates and processes useful for the preparation of the compounds of the invention.
  • vanilloid-receptor-mediated diseases such as inflammatory or neuropathic pain, asthma, rheumatoid arthritis, osteoarthritis, inflammatory bowel disorders, urinary incontinence, migraine and psoriasis diseases.
  • the compounds of the invention are represented by the following general structure:
  • bicyclic ring is not thieno[2,3-b]pyridin-2-yl
  • R 2 is a saturated, partially saturated or unsaturated 9- or 10-membered bicyclic ring containing 0, 1, 2 or 3 N atoms and 0, 1 or 2 atoms selected from O and S, and the bicyclic ring contains at least one N, O or S atom, and when the bicyclic ring is a 10-membered bicyclic ring then the ring containing the connecting atom where R 2 is attached to the general structure must have at least one N atom, and wherein the ring is substituted by 0, 1 or 2 oxo groups; wherein the bicyclic ring is substituted by 0, 1, 2 or 3 substituents selected from R e , C ⁇ -4 haloalkyl, halo, cyano, nitro, -C(
  • R e is independently at each instance C 1-6 alkyl substituted by 0, 1, 2 or 3 substituents independently selected from R d and additionally substituted by 0 or 1 substituents selected from R g ;
  • R is independently at each instance a saturated, partially saturated or unsaturated 5-, 6- or 7-membered monocyclic or 6-, 7-, 8-, 9-, 10- or
  • Another aspect of the invention relates to a method of treating acute, inflammatory and neuropathic pain, dental pain, general headache, migraine, cluster headache, mixed-vascular and non-vascular syndromes, tension headache, general inflammation, arthritis, rheumatic diseases, osteoarthritis, inflammatory bowel disorders, inflammatory eye disorders, inflammatory or unstable bladder disorders, psoriasis, skin complaints with inflammatory components, chronic inflammatory conditions, inflammatory pain and associated hyperalgesia and allodynia, neuropathic pain and associated hyperalgesia and allodynia, diabetic neuropathy pain, causalgia, sympathetically maintained pain, deafferentation syndromes, asthma, epithelial tissue damage or dysfunction, herpes simplex, disturbances of visceral motility at respiratory, genitourinary, gastrointestinal or vascular regions, wounds, burns, allergic skin reactions, pruritus, vitiligo, general gastrointestinal disorders, gastric ulceration, duodenal ulcers, diarrhea, gastric lesions induced by necrot
  • Another aspect of the invention relates to a pharmaceutical composition
  • a pharmaceutical composition comprising a compound according to any of the above embodiments and a pharmaceutically-acceptable diluent or carrier.
  • Another aspect of the invention relates to the use of a compound according to any of the above embodiments as a medicament.
  • Another aspect of the invention relates to the use of a compound according to any of the above embodiments in the manufacture of a medicament for the treatment of acute, inflammatory and neuropathic pain, dental pain, general headache, migraine, cluster headache, mixed-vascular and non-vascular syndromes, tension headache, general inflammation, arthritis, rheumatic diseases, osteoarthritis, inflammatory bowel disorders, inflammatory eye disorders, inflammatory or unstable bladder disorders, psoriasis, skin complaints with inflammatory components, chronic inflammatory conditions, inflammatory pain and associated hyperalgesia and allodynia, neuropathic pain and associated hyperalgesia and allodynia, diabetic neuropathy pain, causalgia, sympathetically maintained pain, deafferentation syndromes, asthma, epithelial tissue damage or dysfunction, herpes simplex, disturbances of visceral motility at respiratory, genitourinary, gastrointestinal or vascular regions, wounds, bums, allergic skin reactions, pruritus, vitiligo, general gastrointestinal disorders, gastric
  • C ⁇ _ ⁇ alkyl means an alkyl group comprising a minimum of and a maximum of ⁇ carbon atoms in a branched, cyclical or linear relationship or any combination of the three, wherein and ⁇ represent integers.
  • the alkyl groups described in this section may also contain one or two double or triple bonds. Examples of . 6 alkyl include, but are not limited to the following:
  • Benzo group alone or in combination, means the divalent radical C.
  • Halo or halogen means a halogen atoms selected from F, Cl, Br and I.
  • Cv-whaloalkyl means an alkyl group, as described above, wherein any number— at least one— of the hydrogen atoms attached to the alkyl chain are replaced by F, Cl, Br or I.
  • Heterocycle means a ring comprising at least one carbon atom and at least one other atom selected from N, O and S. Examples of heterocycles that may be found in the claims include, but are not limited to, the following:
  • “Available nitrogen atoms” are those nitrogen atoms that are part of a heterocycle and are joined by two single bonds (e.g. piperidine), leaving an external bond available for substitution by, for example, H or CH 3 .
  • “Pharmaceutically-acceptable salt” means a salt prepared by conventional means, and are well known by those skilled in the art.
  • the "pharmacologically acceptable salts” include basic salts of inorganic and organic acids, including but not limited to hydrochloric acid, hydrobromic acid, sulfuric acid, phosphoric acid, methanesulfonic acid, ethanesulfonic acid, malic acid, acetic acid, oxalic acid, tartaric acid, citric acid, lactic acid, fumaric acid, succinic acid, maleic acid, salicylic acid, benzoic acid, phenylacetic acid, mandelic acid and the like.
  • suitable pharmaceutically acceptable cation pairs for the carboxy group are well known to those skilled in the art and include alkaline, alkaline earth, ammonium, quaternary ammonium cations and the like.
  • pharmaceutically acceptable salts see infra and Berge et al., J. Pharm. Sci. 66:1 (1977).
  • “Saturated or unsaturated” includes substituents saturated with hydrogens, substituents completely unsaturated with hydrogens and substituents partially saturated with hydrogens.
  • leaving group generally refers to groups readily displaceable by a nucleophile, such as an amine, a thiol or an alcohol nucleophile. Such leaving groups are well known in the art. Examples of such leaving groups include, but are not limited to, N-hydroxysuccinimide, N-hydroxybenzotriazole, halides, triflates, tosylates and the like. Preferred leaving groups are indicated herein where appropriate.
  • Protecting group generally refers to groups well known in the art which are used to prevent selected reactive groups, such as carboxy, amino, hydroxy, mercapto and the like, from undergoing undesired reactions, such as nucleophilic, electrophilic, oxidation, reduction and the like. Preferred protecting groups are indicated herein where appropriate. Examples of amino protecting groups include, but are not limited to, aralkyl, substituted aralkyl, cycloalkenylalkyl and substituted cycloalkenyl alkyl, allyl, substituted allyl, acyl, alkoxycarbonyl, aralkoxycarbonyl, silyl and the like.
  • aralkyl examples include, but are not limited to, benzyl, ortho- methylbenzyl, trityl and benzhydryl, which can be optionally substituted with halogen, alkyl, alkoxy, hydroxy, nitro, acylamino, acyl and the like, and salts, such as phosphonium and ammonium salts.
  • aryl groups include phenyl, naphthyl, indanyl, anthracenyl, 9-(9-phenylfluorenyl), phenanthrenyl, durenyl and the like.
  • cycloalkenylalkyl or substituted cycloalkylenylalkyl radicals preferably have 6-10 carbon atoms, include, but are not limited to, cyclohexenyl methyl and the like.
  • Suitable acyl, alkoxycarbonyl and aralkoxycarbonyl groups include benzyloxycarbonyl, t-butoxycarbonyl, iso-butoxycarbonyl, benzoyl, substituted benzoyl, butyryl, acetyl, trifluoroacetyl, trichloro acetyl, phthaloyl and the like.
  • a mixture of protecting groups can be used to protect the same amino group, such as a primary amino group can be protected by both an aralkyl group and an aralkoxycarbonyl group.
  • Amino protecting groups can also form a heterocyclic ring with the nitrogen to which they are attached, for example, l,2-bis(methylene)benzene, phthalimidyl, succinimidyl, maleimidyl and the like and where these heterocyclic groups can further include adjoining aryl and cycloalkyl rings.
  • the heterocyclic groups can be mono-, di- or tri- substituted, such as nitrophthalimidyl.
  • Amino groups may also be protected against undesired reactions, such as oxidation, through the formation of an addition salt, such as hydrochloride, toluenesulfonic acid, trifluoroacetic acid and the like.
  • an addition salt such as hydrochloride, toluenesulfonic acid, trifluoroacetic acid and the like.
  • Many of the amino protecting groups are also suitable for protecting carboxy, hydroxy and mercapto groups.
  • aralkyl groups For example, aralkyl groups.
  • Alkyl groups are also suitable groups for protecting hydroxy and mercapto groups, such as tert-butyl.
  • Silyl protecting groups are silicon atoms optionally substituted by one or more alkyl, aryl and aralkyl groups.
  • Suitable silyl protecting groups include, but are not limited to, trimethylsilyl, triethylsilyl, triisopropylsilyl, tert- butyldimethylsilyl, dimethylphenylsilyl, l,2-bis(dimethylsilyl)benzene, l,2-bis(dimethylsilyl)ethane and diphenylmethylsilyl.
  • Silylation of an amino groups provide mono- or di-silylamino groups. Silylation of aminoalcohol compounds can lead to a N,N,O-trisilyl derivative.
  • silyl function from a silyl ether function is readily accomplished by treatment with, for example, a metal hydroxide or ammonium fluoride reagent, either as a discrete reaction step or in situ during a reaction with the alcohol group.
  • Suitable silylating agents are, for example, trimethylsilyl chloride, tert-butyl-dimethylsilyl chloride, phenyldimethylsilyl chloride, diphenylmethyl silyl chloride or their combination products with imidazole or DMF.
  • Methods of preparation of these amine derivatives from corresponding amino acids, amino acid amides or amino acid esters are also well known to those skilled in the art of organic chemistry including amino acid amino acid ester or aminoalcohol chemistry.
  • Protecting groups are removed under conditions which will not affect the remaining portion of the molecule. These methods are well known in the art and include acid hydrolysis, hydrogenolysis and the like.
  • a preferred method involves removal of a protecting group, such as removal of a benzyloxycarbonyl group by hydrogenolysis utilizing palladium on carbon in a suitable solvent system such as an alcohol, acetic acid, and the like or mixtures thereof.
  • a t- butoxycarbonyl protecting group can be removed utilizing an inorganic or organic acid, such as HC1 or trifluoroacetic acid, in a suitable solvent system, such as dioxane or methylene chloride.
  • a suitable solvent system such as dioxane or methylene chloride.
  • the resulting amino salt can readily be neutralized to yield the free amine.
  • Carboxy protecting group such as methyl, ethyl, benzyl, tert-butyl, 4-methoxyphenylmethyl and. the like, can be removed under hydrolysis and hydrogenolysis conditions well known to those skilled in the art.
  • Prodrugs of the compounds of this invention are also contemplated by this invention.
  • a prodrug is an active or inactive compound that is modified chemically through in vivo physiological action, such as hydrolysis, metabolism and the like, into a compound of this invention following administration of the prodrug to a patient.
  • prodrugs are well known by those skilled in the art.
  • Examples of a masked carboxylate anion include a variety of esters, such as alkyl (for example, methyl, ethyl), cycloalkyl (for example, cyclohexyl), aralkyl (for example, benzyl, p-methoxybenzyl), and alkylcarbonyloxyalkyl (for example, pivaloyloxymethyl).
  • Amines have been masked as arylcarbonyloxymethyl substituted derivatives which are cleaved by esterases in vivo releasing the free drug and formaldehyde (Bungaard J. Med. Chem. 2503 (1989)). Also, drugs containing an acidic NH group, such as imidazole, imide, indole and the like, have been masked with N- acyloxymethyl groups (Bundgaard Design of Prodrugs, Elsevier (1985)).
  • 6-Bromo-naphthalene-2-carboxylic acid (2-amino-benzothiazol-4-yl)-amide was prepared analogous to the procedure described for Example 1(b). 6-Bromo- naphthalene-2-carbonyl chloride, Example 1(a), (127 mg, 0.47 mmol) reacted with benzothiazole-2,4-diamine (77 mg, 0.47 mmol, prepared according to the procedure described in WO03099284) to give the title compound as an amorphous solid.
  • IVIS ESI, pos. ion.
  • m/z 400 (M+l).
  • 6-Bromo-naphthalene-2-carboxylic acid (2-acetylamino-benzothiazol-4-yl)-amide was prepared analogous to the procedure described for Example 1(b). 6-Bromo- naphthalene-2-carbonyl chloride, Example 1(a), (98 mg, 0.36 mmol) reacted with N-(4- amino-benzothiazol-2-yl)-acetamide (50 mg, 0.24 mmol, prepared according to the procedure described in WO03099284) to give the title compound as a solid. Mp 241.6 °C. MS (ESI, pos. ion.) m/z: 441 (M+l). Example 5
  • 6-Bromo-naphthalene-2-carboxylic acid (lH-ben ⁇ oimida ⁇ ol-5-yl)-amide.
  • This material was prepared analogous to the procedure described for Example 1(b).
  • 6-Bromo- naphthalene-2-carbonyl chloride, Example 1(a) reacted with lH-benzoimidazol-5- ylamine (TimTec) to give the title compound as an amorphous solid.
  • 6-Bromo-naphthalene-2-carboxylic acid quinolin-3-ylamide This material was prepared analogous to the procedure described for Example 1(b). 6-Bromo-naphthalene-2-carbonyl chloride, Example 1(a), reacted with 3-aminoquinoline (Aldrich) to give the title compound as a green amorphous solid. MS (ESI, pos. ion.) m/z: 377 (M+l).
  • tert-Butylarnine (0.21 mL, 2 mmol, Aldrich) was added dropwise to a solution of l,3-dioxo-l,3-dihydro- isobenzofuran-5-carboxylic acid (2,3-dihydro-benzo[ 1 ,4]dioxin-6-yl)-amide (0.65 g, 2 mmol) in glacial AcOH (3 mL) and DMSO (1 mL) with stirring at room temperature. The mixture was stirred at room temperature for 1 h and heated at 110 °C with stirring under nitrogen atmosphere for 18 h. The reaction mixture was cooled to room temperature, diluted with EtOAc (50 mL), washed with satd.
  • 6-Bromo-naphthalene-2-carboxylic acid (2,3-dihydro-benzo [ 1 ,4] dioxin-6-yl)- amide was prepared analogous to the procedure described for Example 10(c). 6-Bromo-naphthalene-2-carboxylic acid (0.5 g, 2 mmol, Lancaster) reacted with l,4-benzodioxan-6-amine (0.332 g, 2.2 mmol, Aldrich) to give the title compound as a light-yellow solid. Mp 222.7 °C. MS (ESI, pos. ion) m/z: 384 (M+l).
  • DRG dorsal root ganglia
  • the DRG were then dissociated into single cell suspension using a papain dissociation system (Worthington Biochemical Corp., Freehold, NJ).
  • the dissociated cells were pelleted at 200 x g for 5 min and re-suspended in EBSS containing 1 mg/ml ovomucoid inhibitor, 1 mg/ml ovalbumin and 0.005% DNase.
  • Cell suspension was centrifuged through a gradient solution containing 10 mg/ml ovomucoid inhibitor, 10 mg/ml ovalbumin at 200 x g for 6 min to remove cell debris; and filtered through a 88- ⁇ m nylon mesh (Fisher Scientific, Pittsburgh, PA) to remove any clumps.
  • Cell number was determined with a hemocytometer and cells were seeded into poly-omithine 100 ⁇ g/ml (Sigma) and mouse laminin 1 ⁇ g/ml (Life Technologies)-coated 96-well plates at 10 x 10 3 cells/well in complete medium.
  • the complete medium consists of minimal essential medium (MEM) and Ham's F12, 1:1, penicillin (100 U/ml), and streptomycin (100 ⁇ g/ml), and nerve growth factor (lOng/ml), 10% heat inactivated horse serum (Life Technologies). The cultures were kept at 37 °C, 5% CO 2 and 100% humidity.
  • Capsaicin Antagonist Assay E-19 DRG cells at 5 days in culture are incubated with serial concentrations of VR1 antagonists, in HBSS (Hanks buffered saline solution supplemented with BSA O.lmg/ml and 1 mM Hepes at pH 7.4) for 15 min, 37 °C. Cells are then challenged with a NR1 agonist, capsaicin 200 nM, in activation buffer containing O.lmg/ml BSA, 15 mM Hepes, pH 7.4, and 10 ⁇ Ci/ml 45 Ca 2+ (Amersham) in Ham's F12 for 2 min at 37 °C.
  • Acid Antagonist Assay Compounds are pre-incubated with E-19 DRG cells for 2 minutes prior to addition of Calcium-45 in 30mM Hepes/Mes buffer (Final Assay pH 5) and then left for an additional 2 minutes prior to compound washout. Final 45Ca (Amersham CES3-2mCi) at 10 ⁇ Ci/mL.
  • Agonist Assay Compounds are incubated with E-19 DRG cells for 2 minutes in the presence of Calcium-45 prior to compound washout. Final 45 Ca 2+
  • Compounds may be assayed using Chinese Hamster Ovary cell lines stably expressing either human VR1 or rat VR1 under a CMN promoter.
  • Cells can be cultured in Growth Medium, routinely passaged at 70% confluency using trypsin and plated in the assay plate 24 hours prior to compound evaluation.
  • Possible Growth Medium DMEM, high glucose (Gibco 11965-084). 10% Dialyzed serum (Hyclone SH30079.03).
  • IX ⁇ on-Essential Amino Acids (Gibco 11140-050).
  • IX Glutamine-Pen-Strep (Gibco 10378-016). Geneticin, 450 ⁇ g/mL (Gibco 10131-035).
  • Compounds can be diluted in 100% DMSO and tested for activity over several log units of concentration [40 ⁇ M-2pM]. Compounds may be further diluted in HBSS buffer (pH 7.4) 0.1 mg/mL BSA, prior to evaluation. Final DMSO concentration in assay would be 0.5%.
  • Each assay plate can be controlled with a buffer only and a known antagonist compound (either capsazepine or one of the described VR1 antagonists).
  • Activation of NR1 can be achieved in these cellular assays using either a capsaicin stimulus (ranging from 0.1-l ⁇ M) or by an acid stimulus (addition of 30mM Hepes/Mes buffered at pH 4.1).
  • Capsaicin Antagonist Assay Compounds may be pre-incubated with cells (expressing either human or rat VR1) for 2 minutes prior to addition of Calcium- 45 and Capsaicin and then left for an additional 2 minutes prior to compound washout. Capsaicin (0.5nM) can be added in HAM's F12, 0.1 mg/mL BSA, 15 mM Hepes at pH 7.4. Final 45 Ca (Amersham CES3-2mCi) at lO ⁇ Ci/mL.
  • Acid Antagonist Assay Compounds can be pre-incubated with cells (expressing either human or rat VR1) for 2 minutes prior to addition of Calcium-45 in 30mM Hepes/Mes buffer (Final Assay pH 5) and then left for an additional 2 minutes prior to compound washout. Final 45 Ca (Amersham CES3-2mCi) at 10/ Ci/mL.
  • Agonist Assay Compounds can be incubated with cells (expressing either human or rat NR1) for 2 minutes in the presence of Calcium-45 prior to compound washout. Final 45 Ca (Amersham CES3-2mCi) at lO Ci/mL.
  • Assay plates can be washed using an ELX405 plate washer (Bio-Tek Instruments Inc.) immediately after functional assay. One can wash 3 X with PBS Mg2 + /Ca 2+ free, 0.1 mg/mL BSA, aspirating between washes. Plates may be read using a MicroBeta Jet (Wallac Inc.). Compound activity may then calculated using appropriate computational algorithms. Useful nucleic acid sequences and proteins may be found in U.S. Patent ⁇ os. 6,335,180, 6, 406,908 and 6,239,267, herein incorporated by reference in their entirety.
  • vanilloid-receptor-diseases such as acute, inflammatory and neuropathic pain, dental pain, general headache, migraine, cluster headache, mixed- vascular and non- vascular syndromes, tension headache, general inflammation, arthritis, rheumatic diseases, osteoarthritis, inflammatory bowel disorders, inflammatory eye disorders, inflammatory or unstable bladder disorders, psoriasis, skin complaints with inflammatory components, chronic inflammatory conditions, inflammatory pain and associated hyperalgesia and allodynia, neuropathic pain and associated hyperalgesia and allodynia, diabetic neuropathy pain, causalgia, sympathetically maintained pain, deafferentation syndromes, asthma, epithelial tissue damage or dysfunction, herpes simplex, disturbances of visceral motility at respiratory, genitourinary, gastrointestinal or vascular regions, wounds, bu s, allergic skin reactions, pruritus, vitiligo, general gastrointestinal disorders, gastric ulceration, duodenal ulcers, diarrhea, gas
  • parenteral as used herein includes, subcutaneous, intravenous, intramuscular, intrastemal, infusion techniques or intraperitoneally. Treatment of diseases and disorders herein is intended to also include the prophylactic administration of a compound of the invention, a pharmaceutical salt thereof, or a pharmaceutical composition of either to a subject (i.e., an animal, preferably a mammal, most preferably a human) believed to be in need of preventative treatment, such as, for example, pain, inflammation and the like.
  • a subject i.e., an animal, preferably a mammal, most preferably a human
  • the dosage regimen for treating vanilloid-receptor-mediated diseases, cancer, and/or hyperglycemia with the compounds of this invention and/or compositions of this invention is based on a variety of factors, including the type of disease, the age, weight, sex, medical condition of the patient, the severity of the condition, the route of administration, and the particular compound employed. Thus, the dosage regimen may vary widely, but can be determined routinely using standard methods. Dosage levels of the order from about 0.01 mg to 30 mg per kilogram of body weight per day, preferably from about 0.1 mg to 10 mg/kg, more preferably from about 0.25 mg to 1 mg/kg are useful for all methods of use disclosed herein.
  • the pharmaceutically active compounds of this invention can be processed in accordance with conventional methods of pharmacy to produce medicinal agents for administration to patients, including humans and other mammals.
  • the pharmaceutical composition may be in the form of, for example, a capsule, a tablet, a suspension, or liquid.
  • the pharmaceutical composition is preferably made in the form of a dosage unit containing a given amount of the active ingredient.
  • these may contain an amount of active ingredient from about 1 to 2000 mg, preferably from about 1 to 500 mg, more preferably from about 5 to 150 mg.
  • a suitable daily dose for a human or other mammal may vary widely depending on the condition of the patient and other factors, but, once again, can be determined using routine methods.
  • the active ingredient may also be administered by injection as a composition with suitable carriers including saline, dextrose, or water.
  • suitable carriers including saline, dextrose, or water.
  • the daily parenteral dosage regimen will be from about 0.1 to about 30 mg/kg of total body weight, preferably from about 0.1 to about 10 mg/kg, and more preferably from about 0.25 mg to 1 mg/kg.
  • injectable preparations such as sterile injectable aqueous or oleaginous suspensions, may be formulated according to the known are using suitable dispersing or wetting agents and suspending agents.
  • the sterile injectable preparation may also be a sterile injectable solution or suspension in a non-toxic parenterally acceptable diluent or solvent, for example as a solution in 1,3- butanediol.
  • Suitable vehicles and solvents that may be employed are water, Ringer's solution, and isotonic sodium chloride solution.
  • sterile, fixed oils are conventionally employed as a solvent or suspending medium.
  • any bland fixed oil may be employed, including synthetic mono- or diglycerides.
  • fatty acids such as oleic acid find use in the preparation of injectables.
  • Suppositories for rectal administration of the drug can be prepared by mixing the drug with a suitable non-irritating excipient such as cocoa butter and polyethylene glycols that are solid at ordinary temperatures but liquid at the rectal temperature and will therefore melt in the rectum and release the drug.
  • a suitable topical dose of active ingredient of a compound of the invention is 0.1 mg to 150 mg administered one to four, preferably one or two times daily.
  • the active ingredient may comprise from 0.001% to 10% w/w, e.g., from 1% to 2% by weight of the formulation, although it may comprise as much as 10% w/w, but preferably not more than 5% w/w, and more preferably from 0.1% to 1% of the formulation.
  • Formulations suitable for topical administration include liquid or semi- liquid preparations suitable for penetration through the skin (e.g. , liniments, lotions, ointments, creams, or pastes) and drops suitable for administration to the eye, ear, or nose.
  • the compounds of this invention are ordinarily combined with one or more adjuvants appropriate for the indicated route of administration.
  • the compounds may be admixed with lactose, sucrose, starch powder, cellulose esters of alkanoic acids, stearic acid, talc, magnesium stearate, magnesium oxide, sodium and calcium salts of phosphoric and sulfuric acids, acacia, gelatin, sodium alginate, polyvinyl-pyrrolidine, and/or polyvinyl alcohol, and tableted or encapsulated for conventional administration.
  • the compounds of this invention may be dissolved in saline, water, polyethylene glycol, propylene glycol, ethanol, com oil, peanut oil, cottonseed oil, sesame oil, tragacanth gum, and/or various buffers.
  • Other adjuvants and modes of administration are well known in the pharmaceutical art.
  • the carrier or diluent may include time delay material, such as glyceryl monostearate or glyceryl distearate alone or with a wax, or other materials well known in the art.
  • the pharmaceutical compositions may be made up in a solid form (including granules, powders or suppositories) or in a liquid form (e.g., solutions, suspensions, or emulsions).
  • the pharmaceutical compositions may be subjected to conventional pharmaceutical operations such as sterilization and/or may contain conventional adjuvants, such as preservatives, stabilizers, wetting agents, emulsifiers, buffers etc.
  • Solid dosage forms for oral administration may include capsules, tablets, pills, powders, and granules.
  • the active compound may be admixed with at least one inert diluent such as sucrose, lactose, or starch.
  • Such dosage forms may also comprise, as in normal practice, additional substances other than inert diluents, e.g., lubricating agents such as magnesium stearate.
  • the dosage forms may also comprise buffering agents.
  • Liquid dosage forms for oral administration may include pharmaceutically acceptable emulsions, solutions, suspensions, syrups, and elixirs containing inert diluents commonly used in the art, such as water. Such compositions may also comprise adjuvants, such as wetting, sweetening, flavoring, and perfuming agents.
  • Compounds of the present invention can possess one or more asymmetric carbon atoms and are thus capable of existing in the form of optical isomers as well as in the form of racemic or non-racemic mixtures thereof.
  • optical isomers can be obtained by resolution of the racemic mixtures according to conventional processes, e.g., by formation of diastereoisomeric salts, by treatment with an optically active acid or base.
  • appropriate acids are tartaric, diacetyltartaric, dibenzoyltartaric, ditoluoyltartaric, and camphorsulfonic acid and then separation of the mixture of diastereoisomers by crystallization followed by liberation of the optically active bases from these salts.
  • a different process for separation of optical isomers involves the use of a chiral chromatography column optimally chosen to maximize the separation of the enantiomers.
  • Still another available method involves synthesis of covalent diastereoisomeric molecules by reacting compounds of the invention with an optically pure acid in an activated form or an optically pure isocyanate.
  • the synthesized diastereoisomers can be separated by conventional means such as chromatography, distillation, crystallization or sublimation, and then hydrolyzed to deliver the enantiomerically pure compound.
  • the optically active compounds of the invention can likewise be obtained by using active starting materials. These isomers may be in the form of a free acid, a free base, an ester or a salt.
  • the compounds of this invention may exist as isomers, that is compounds of the same molecular formula but in which the atoms, relative to one another, are arranged differently.
  • the alkylene substituents of the compounds of this invention are normally and preferably arranged and inserted into the molecules as indicated in the definitions for each of these groups, being read from left to right.
  • substituents are reversed in orientation relative to the other atoms in the molecule. That is, the substituent to be inserted may be the same as that noted above except that it is inserted into the molecule in the reverse orientation.
  • substituent to be inserted may be the same as that noted above except that it is inserted into the molecule in the reverse orientation.
  • the compounds of the present invention can be used in the form of salts derived from inorganic or organic acids.
  • the salts include, but are not limited to, the following: acetate, adipate, alginate, citrate, aspartate, benzoate, benzenesulfonate, bisulfate, butyrate, camphorate, camphorsulfonate, digluconate, cyclopentanepropionate, dodecylsulfate, ethanesulfonate, glucoheptanoate, glycerophosphate, hemisulfate, heptanoate, hexanoate, fumarate, hydrochloride, hydrobromide, hydroiodide, 2-hydroxyethanesulfonate, lactate, maleate, methansulfonate, nicotinate, 2-naphthalenesulfonate, oxalate, palmoate, pectinate, persulfate, 2-phenylpropionate, picrate, pivalate, propionate, succinate, tartrate, thio
  • the basic nitrogen- containing groups can be quatemized with such agents as lower alkyl halides, such as methyl, ethyl, propyl, and butyl chloride, bromides and iodides; dialkyl sulfates like dimethyl, diethyl, dibutyl, and diamyl sulfates, long chain halides such as decyl, lauryl, myristyl and stearyl chlorides, bromides and iodides, aralkyl halides like benzyl and phenethyl bromides, and others. Water or oil-soluble or dispersible products are thereby obtained.
  • lower alkyl halides such as methyl, ethyl, propyl, and butyl chloride, bromides and iodides
  • dialkyl sulfates like dimethyl, diethyl, dibutyl, and diamyl sulfates
  • long chain halides such as
  • Other examples include salts with alkali metals or alkaline earth metals, such as sodium, potassium, calcium or magnesium or with organic bases.
  • pharmaceutically acceptable esters of a carboxylic acid or hydroxyl containing group including a metabolically labile ester or a prodrug form of a compound of this invention.
  • a metabolically labile ester is one which may produce, for example, an increase in blood levels and prolong the efficacy of the corresponding non-esterified form of the compound.
  • a prodrug form is one which is not in an active form of the molecule as administered but which becomes therapeutically active after some in vivo activity or biotransformation, such as metabolism, for example, enzymatic or hydrolytic cleavage.
  • Examples of a masked carboxylate anion include a variety of esters, such as alkyl (for example, methyl, ethyl), cycloalkyl (for example, cyclohexyl), aralkyl (for example, benzyl, p- methoxybenzyl), and alkylcarbonyloxyalkyl (for example, pivaloyloxymethyl).
  • esters such as alkyl (for example, methyl, ethyl), cycloalkyl (for example, cyclohexyl), aralkyl (for example, benzyl, p- methoxybenzyl), and alkylcarbonyloxyalkyl (for example, pivaloyloxymethyl).
  • Amines have been masked as arylcarbonyloxymethyl substituted derivatives which are cleaved by esterases in vivo releasing the free drug and formaldehyde (Bungaard J. Med. Chem. 2503 (1989)). Also, drugs containing an acidic NH group, such as imidazole, imide, indole and the like, have been masked with N- acyloxymethyl groups (Bundgaard Design of Prodrugs, Elsevier (1985)). Hydroxy groups have been masked as esters and ethers.
  • EP 039,051 (Sloan and Little, 4/11/81) discloses Mannich-base hydroxamic acid prodrugs, their preparation and use.
  • Esters of a compound of this invention may include, for example, the methyl, ethyl, propyl, and butyl esters, as well as other suitable esters formed between an acidic moiety and a hydroxyl containing moiety.
  • Metabolically labile esters may include, for example, methoxymethyl, ethoxymethyl, iso-propoxymethyl, -methoxyethyl, groups such as ⁇ -
  • ((C ⁇ -C 4 )alkyloxy)ethyl for example, methoxyethyl, ethoxyethyl, propoxyethyl, iso-propoxyethyl, etc.; 2-oxo-l,3-dioxolen-4-ylmethyl groups, such as 5-methyl- 2-oxo-l, 3, dioxolen-4-ylmethyl, etc.; C C 3 alkylthiomethyl groups, for example, methylthiomethyl, ethylthiomethyl, isopropylthiomethyl, etc.; acyloxymethyl groups, for example, pivaloyloxymethyl, ⁇ -acetoxymethyl, etc.; ethoxycarbonyl- 1-methyl; or ⁇ -acyloxy- ⁇ -substituted methyl groups, for example ⁇ -acetoxyethyl.
  • the compounds of the invention may exist as crystalline solids which can be crystallized from common solvents such as ethanol, N,N-dimethyl- formamide, water, or the like.
  • crystalline forms of the compounds of the invention may exist as polymorphs, solvates and/or hydrates of the parent compounds or their pharmaceutically acceptable salts. All of such forms likewise are to be construed as falling within the scope of the invention.
  • the compounds of the invention can be administered as the sole active pharmaceutical agent, they can also be used in combination with one or more compounds of the invention or other agents.
  • the therapeutic agents can be formulated as separate compositions that are given at the same time or different times, or the therapeutic agents can be given as a single composition.

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Abstract

bis-Bicyclic amides and derivatives thereof and compositions containing them, for the treatment of acute, inflammatory and neuropathic pain, dental pain, general headache, migraine, cluster headache, mixed-vascular and non-vascular syndromes, tension headache, general inflammation, arthritis, rheumatic diseases, osteoarthritis, inflammatory bowel disorders, inflammatory eye disorders, inflammatory or unstable bladder disorders, psoriasis, skin complaints with inflammatory components, chronic inflammatory conditions, inflammatory pain and associated hyperalgesia and allodynia, neuropathic pain and associated hyperalgesia and allodynia, diabetic neuropathy pain, causalgia, sympathetically maintained pain, deafferentation syndromes, asthma, epithelial tissue damage or dysfunction, herpes simplex, disturbances of visceral motility at respiratory, genitourinary, gastrointestinal or vascular regions, wounds, burns, allergic skin reactions, pruritus, vitiligo, general gastrointestinal disorders, gastric ulceration, duodenal ulcers, diarrhea, gastric lesions induced by necrotising agents, hair growth, vasomotor or allergic rhinitis, bronchial disorders or bladder disorders.

Description

IS BICYCLIC AMIDES AS VANILLOID RECEPTOR LIGANDS AND THEIR USE IN TREATMENTS OF INFLAMMATORY AND NEUROPATIC PAIN This application claims the benefit of U.S. Provisional Application No. 60/538,700, filed January 23, 2004, which is hereby incorporated by reference.
Background The vanilloid receptor 1 (VR1) is the molecular target of capsaicin, the active ingredient in hot peppers. Julius et al. reported the molecular cloning of VR1 (Caterina et al., 1997). NR1 is a non-selective cation channel which is 10 activated or sensitized by a series of different stimuli including capsaicin and resiniferatoxin (exogenous activators), heat & acid stimulation and products of lipid bilayer metabolism, anandamide (Premkumar et al., 2000, Szabo et al., 2000, Gauldie et al., 2001, Olah et al., 2001) and lipoxygenase metabolites (Hwang et al., 2000). NR1 is highly expressed in primary sensory neurons (Caterina et al., 15 1997) in rats, mice and humans (Onozawa et al., 2000, Mezey et al., 2000, Helliwell et al., 1998, Cortright et al., 2001). These sensory neurons innervate many visceral organs including the dermis, bones, bladder, gastrointestinal tract and lungs; NR1 is also expressed in other neuronal and non-neuronal tissues including but not limited to, CΝS nuclei, kidney, stomach and T-cells (Νozawa et 20 al., 2001, Yiangou et al., 2001, Birder et al., 2001). Presumably expression in these various cells and organs may contribute to their basic properties such as cellular signaling and cell division. Prior to the molecular cloning of NR1, experimentation with capsaicin indicated the presence of a capsaicin sensitive receptor, which could increase the 25 activity of sensory neurons in humans, rats and mice (Holzer, 1991; Dray, 1992, Szallasi and Blumberg 1996, 1999). The result of acute activation by capsaicin in humans was pain at injection site and in other species increased behavioral sensitivity to sensory stimuli (Szallasi and Blumberg, 1999). Capsaicin application to the skin in humans causes a painful reaction characterized not only 30 by the perception of heat and pain at the site of administration but also by a wider area of hyperalgesia and allodynia, two characteristic symptoms of the human condition of neuropathic pain (Holzer, 1991). Taken together, it seems likely that increased activity of NR1 plays a significant role in the establishment and maintenance of pain conditions. Topical or intradermal injection of capsaicin has also been shown to produce localized vasodilation and edema production (Szallasi and Blumberg 1999, Singh et al., 2001). This evidence indicates that capsaicin through it's activation of NR1 can regulate afferent and efferent function of sensory nerves. Sensory nerve involvement in diseases could therefore be modified by molecules, which affect the function of the vanilloid receptor to increase or decrease the activity of sensory nerves. NR1 gene knockout mice have been shown to reduce sensory sensitivity to thermal and acid stimuli (Caterina et al., 2000)). This supports the concept that NR1 contributes not only to generation of pain responses (i.e. via thermal, acid or capsaicin stimuli) but also to the maintenance of basal activity of sensory nerves. This evidence agrees with studies demonstrating capsaicin sensitive nerve involvement in disease. Primary sensory nerves in humans and other species can be made inactive by continued capsaicin stimulation. This paradigm causes receptor activation induced desensitization of the primary sensory nerve - such reduction in sensory nerve activity in vivo makes subjects less sensitive to subsequent painful stimuli. In this regard both capsaicin and resinferatoxin (exogenous activators of VR1), produce desensitization and they have been used for many proof of concept studies in in vivo models of disease (Holzer, 1991, Dray 1992, Szallasi and Blumberg 1999). Bibliography
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Singh-LK. Pang-X. Alexacos-N. Letourneau-R. Theoharides-TC. (1999) Acute immobilization stress triggers skin mast cell degranulation via corticotropin releasing hormone, neurotensin, and substance P: A link to neurogenic skin disorders. Brain Behav. Immun. 13: 3: 225-239. Szallasi, A. Blumberg-PM (1996) Nanilloid receptors: New insights enhance potential as a therapeutic target. Pain 68: 195-208 Szallasi-A. Blumberg-PM. (1999) Nanilloid (capsaicin) receptors and mechanisms. Pharmacol. Rev. 51: 2: 159-211. Szabo-T. Wang-J. Gonzalez-A. Kedei-Ν. Lile-J. Treanor-J. Blumberg-PM. (2000) Pharmacological characterization of the human vanilloid receptor type-1 (hNRl). Society for Νeuroscience Abstracts. 26:1-2: 634.18. Tominaga, M., Caterina, M.J., Malmberg, A.B., Rosen, T.A., Gilbert, H., Skinner, K., Raumann, B.E., Basbaum, A.I., and Julius, D., (1998). The cloned capsaicin receptor integrates multiple pain-producing stimuli. Neuron 21: 531-543. Yiangou-Y. Facer-P. Dyer-NHC. Chan-CLH. Knowles-C.
Williams-NS. Anand-P. (2001) Nanilloid receptor 1 immunoreactivity in inflamed human bowel. Lancet (North American Edition) 357: 9265: 1338-1339. Yiangou-Y. Facer-P. Ford-A. Brady-C. Wiseman-O. Fowler-CJ. Anand-P. (2001) Capsaicin receptor VR1 and ATP-gated ion channel P2X3 in human urinary bladder. BJU International 87: 9: 774-779.
Wang-H. Bian-D. Zhu-D. Zajic-G. Loeloff-R. Lile-J. Wild-K. Treanor-J. Curran-E. (2000) Inflammation-induced upregulation of VR1 in rat spinal cord and DRG correlates with enhanced nociceptive processing. Society for Neuroscience Abstracts 26:1-2: 632.15. Summary The present invention comprises a new class of compounds useful in the treatment of diseases, such as vanilloid-receptor-mediated diseases and other maladies, such as inflammatory or neuropathic pain and diseases involving sensory nerve function such as asthma, rheumatoid arthritis, osteoarthritis, inflammatory bowel disorders, urinary incontinence, migraine and psoriasis. In particular, the compounds of the invention are useful for the treatment of acute, inflammatory and neuropathic pain, dental pain, general headache, migraine, cluster headache, mixed- vascular and non- vascular syndromes, tension headache, general inflammation, arthritis, rheumatic diseases, osteoarthritis, inflammatory bowel disorders, inflammatory eye disorders, inflammatory or unstable bladder disorders, psoriasis, skin complaints with inflammatory components, chronic inflammatory conditions, inflammatory pain and associated hyperalgesia and allodynia, neuropathic pain and associated hyperalgesia and allodynia, diabetic neuropathy pain, causalgia, sympathetically maintained pain, deafferentation syndromes, asthma, epithelial tissue damage or dysfunction, herpes simplex, disturbances of visceral motility at respiratory, genitourinary, gastrointestinal or vascular regions, wounds, burns, allergic skin reactions, pruritus, vitiligo, general gastrointestinal disorders, gastric ulceration, duodenal ulcers, diarrhea, gastric lesions induced by necrotising agents, hair growth, vasomotor or allergic rhinitis, bronchial disorders or bladder disorders. Accordingly, the invention also comprises pharmaceutical compositions comprising the compounds, methods for the treatment of vanilloid-receptor-mediated diseases, such as inflammatory or neuropathic pain, asthma, rheumatoid arthritis, osteoarthritis, inflammatory bowel disorders, urinary incontinence, migraine and psoriasis diseases, using the compounds and compositions of the invention, and intermediates and processes useful for the preparation of the compounds of the invention. The compounds of the invention are represented by the following general structure:
Figure imgf000006_0001
i 9 or a pharmaceutically acceptable salt thereof, wherein J, R , and R , are defined below. The foregoing merely summarizes certain aspects of the invention and is not intended, nor should it be construed, as limiting the invention in any way. All patents, patent applications and other publications recited herein are hereby incorporated by reference in their entirety.
Detailed Description One aspect of the current invention relates to compounds having the general structure:
Figure imgf000007_0001
or any pharmaceutically- acceptable salt or hydrate thereof, wherein: J is =O, =S, =CHNO2, =N-CN, =CHSO2Rb, =NSO2R or =NRb; R1 is a saturated, partially saturated or unsaturated 9-, 10- or 11-membered bicyclic ring containing 0, 1, 2, 3 or 4 atoms selected from N, O and S, wherein the number of O and S atoms in the ring is not greater than 2, wherein the carbon atoms of the ring are substituted by 0, 1 or 2 oxo groups, and wherein the bicyclic ring is substituted by 1, 2 or 3 substituents selected from Re, Rg, C1-4haloalkyl, halo, cyano, nitro, -C(=O)Rb, -C(=O)ORb, -C(=O)NRaRa, -C(=NRa)NRaRa, -OR1, -OC(=O)Rb, -OC(=O)NRaRa, -OC(=O)N(Ra)S(=O)2Rb, -OC2-6alkylNRaRa, -OC2-6alkylORa, -SRa, -S(=O)Rb, -S(=O)2Rb, -S(=O)2NRaRa, -S(=O)2N(Ra)C(=O)Rb, -S(=O)2N(Ra)C(=O)ORb, -S(=O)2N(Ra)C(=O)NRaRa, -NRaRa, -N(Ra)C(=O)Rb, -N(Ra)C(=O)ORb, -N(Ra)C(=O)NRaRa, -N(Ra)C(=NRa)NRaRa, -N(Ra)S(=O)2Rb, -N(Ra)S(=O)2NRaRa,
-NRaC2-6alkylNRaRa or -NRaC2-6alkylORa; with the proviso that bicyclic ring is not thieno[2,3-b]pyridin-2-yl; R2 is a saturated, partially saturated or unsaturated 9- or 10-membered bicyclic ring containing 0, 1, 2 or 3 N atoms and 0, 1 or 2 atoms selected from O and S, and the bicyclic ring contains at least one N, O or S atom, and when the bicyclic ring is a 10-membered bicyclic ring then the ring containing the connecting atom where R2 is attached to the general structure must have at least one N atom, and wherein the ring is substituted by 0, 1 or 2 oxo groups; wherein the bicyclic ring is substituted by 0, 1, 2 or 3 substituents selected from Re, Cι-4haloalkyl, halo, cyano, nitro, -C(=O)R , -C(=O)ORb, -C(=O)NRaRa, -C(=NRa)NRaRa, -ORa, -OC(=O)Rb, -OC(=O)NRaRa, -OC(=O)N(Ra)S(=O)2Rb, -OC2-6alkylNRaRa, -OC2-6alkylORa, -SRa, -S(=O)Rb, -S(=O)2R , -S(=O)2NRaRa, -S(=O)2N(Ra)C(=O)Rb, -S(=O)2N(Ra)C(=O)ORb, -S(=O)2N(Ra)C(=O)NRaRa, -NRaRa, -N(Ra)C(=O)Rb, -N(Ra)C(=O)ORb, -N(Ra)C(=O)NRaRa, -N(Ra)C(=NRa)NRaRa, -N(Ra)S(=O)2Rb, -N(Ra)S(=O)2NRaRa, -NRaC2-6alkylNRaRa or -NRaC2-6alkylORa; or R2 is a saturated or partially saturated 9- or 10-membered bicyclic carbocyclic ring substituted by 0, 1 or 2 oxo groups and substituted by 1, 2 or 3 substituents selected from Re, Cι-4haloalkyl, halo, cyano, nitro, -C(=O)Rb, -C(=O)ORb, -C(=O)NRaRa, -C(=NRa)NRaRa, -ORa, -OC(=O)Rb, -OC(=O)NRaRa, -OC(=O)N(Ra)S(=O)2Rb, -OC2.6alkylNRaRa, -OC2-6alkylORa, -SRa, -S(=O)Rb, -S(=O)2Rb, -S(=O)2NRaRa,
-S(=O)2N(Ra)C(=O)Rb, -S(=O)2N(Ra)C(=O)ORb, -S(=O)2N(Ra)C(=O)NRaRa, -NRaRa, -N(Ra)C(=O)Rb, -N(Ra)C(=O)ORb, -N(Ra)C(=O)NRaRa, -N(Ra)C(=NRa)NRaRa, -N(Ra)S(=O)2R , -N(Ra)S(=O)2NRaRa, -NRaC2-6alkylNRaRa or -NRaC2-6alkylORa; Ra is independently, at each instance, H or Rb; R is independently, at each instance, phenyl, benzyl or Cι-6alkyl, the phenyl, benzyl and Cι-6alkyl being substituted by 0, 1, 2 or 3 substituents selected from halo, C1-4alkyl, C1-3haloalkyl, -OCι-4alkyl, -NH2, -NHC1-4alkyl, -N(C1-4alkyl)Cι-4alkyl; Rd is independently at each instance Cι-8alkyl, Cι- haloalkyl, halo, cyano, nitro, -C(=O)Rb, -C(=O)ORb, -C(=O)NRaRa, -C(=NRa)NRaRa, -ORa, -OC(=O)Rb, -OC(=O)NRaRa, -OC(=O)N(Ra)S(=O)2Rb, -OC2-6alkylNRaRa, -OC2-6alkylORa, -SRa, -S(=O)Rb, -S(=O)2Rb, -S(=O)2NRaRa, -S(=O)2N(Ra)C(=O)Rb, -S(=O)2N(Ra)C(=O)OR , -S(=O)2N(Ra)C(=O)NRaRa, -NRaRa, -N(Ra)C(=O)Rb, -N(Ra)C(=O)ORb, -N(Ra)C(=O)NRaRa, -N(Ra)C(=NRa)NRaRa, -N(Ra)S(=O)2Rb,
-N(Ra)S(=O)2NRaRa, -NRaC2-6alkylNRaRa or -NRaC2-6alkylORa; Re is independently at each instance C1-6alkyl substituted by 0, 1, 2 or 3 substituents independently selected from Rd and additionally substituted by 0 or 1 substituents selected from Rg; R is independently at each instance a saturated, partially saturated or unsaturated 5-, 6- or 7-membered monocyclic or 6-, 7-, 8-, 9-, 10- or
11-membered bicyclic ring containing 0, 1, 2, 3 or 4 atoms selected from N, O and S, wherein the carbon atoms of the ring are substituted by 0, 1 or 2 oxo groups and the ring is substituted by 0, 1, 2 or 3 substituents selected from Cι-8alkyl, Cι-4haloalkyl, halo, cyano, nitro, -C(=O)Rb, -C(=O)ORb, -C(=O)NRaRa, -C(=NRa)NRaRa, -ORa, -OC(=O)Rb, -OC(=O)NRaRa, -OC(=O)N(Ra)S(=O)2Rb, -OC2-6alkylNRaRa, -OC2-6alkylORa, -SRa, -S(=O)Rb, -S(=O)2Rb, -S(=O)2NRaRa, -S(=O)2N(Ra)C(=O)Rb, -S(=O)2N(Ra)C(=O)ORb, -S(=O)2N(Ra)C(=O)NRaRa, -NRaRa, -N(Ra)C(=O)Rb, -N(Ra)C(=O)ORb, -N(Ra)C(=O)NRaRa, -N(Ra)C(=NRa)NRaRa, -N(Ra)S(=O)2Rb, -N(Ra)S(=O)2NRaRa, -NRaC2-6alkylNRaRa and -NRaC2-6alkylORa; and R1 is benzyl, C2-6alkyl, the benzyl and C2-6alkyl being substituted by 0, 1, 2 or 3 substituents selected from halo, C1- alkyl, Cι-3haloalkyl, -OCι-4alkyl, -NH2, -NHCι-4alkyl, -N(Cι-4alkyl)Cι-4alkyl; or R1 is methyl substituted by 1, 2 or 3 substituents selected from halo, Cι- alkyl, C1-3haloalkyl, -OC1-4alkyl, -NH2, -NHCι- alkyl, -N(C1-4alkyl)C1-4alkyl; or R1 is a saturated, partially saturated or unsaturated 5-, 6- or 7-membered ring containing 0, 1, 2, 3 or 4 atoms selected from N, O and S, wherein the carbon atoms of the ring are substituted by 0, 1 or 2 oxo groups and the ring is substituted by 0, 1, 2 or 3 substituents selected from C1-8alkyl, Cι-4haloalkyl, halo, cyano, nitro, -C(=O)Rb, -C(=O)ORb, -C(=O)NRaRa, -C(=NRa)NRaRa, -ORa, -OC(=O)R , -OC(=O)NRaRa, -OC(=O)N(Ra)S(=O)2Rb,
-OC2-6alkylNRaRa, -OC2-6alkylORa, -SRa, -S(=O)Rb, -S(=O)2Rb, -S(=O)2NRaRa, -S(=O)2N(Ra)C(=O)Rb, -S(=O)2N(Ra)C(=O)OR , -S(=O)2N(Ra)C(=O)NRaRa, -NRaRa, -N(Ra)C(=O)Rb, -N(Ra)C(=O)ORb, -N(Ra)C(=O)NRaRa, -N(Ra)C(=NRa)NRaRa, -N(Ra)S(=O)2Rb, -N(Ra)S(=O)2NRaRa, -NRaC2-6alkylNRaRa and -NRaC2-6alkylORa. In another embodiment, in conjunction with any of the above and below embodiments, R1 is a saturated, partially saturated or unsaturated 9-, 10- or 11- membered bicyclic ring containing 0, 1, 2, 3 or A atoms selected from N and O, wherein the number of O atoms in the ring is not greater than 2, wherein the carbon atoms of the ring are substituted by 0, 1 or 2 oxo groups, and wherein the bicyclic ring is substituted by 1, 2 or 3 substituents selected from Re, Rs, C1-4haloalkyl, halo, cyano, nitro, -C(=O)Rb, -C(=O)OR , -C(=O)NRaRa,
-C(=NRa)NRaRa, -OR1, -OC(=O)Rb, -OC(=O)NRaRa, -OC(=O)N(Ra)S(=O)2Rb, -OC2-6alkylNRaRa, -OC2-6alkylORa, -SRa, -S(=O)Rb, -S(=O)2Rb, -S(=O)2NRaRa, -S(=O)2N(Ra)C(=O)Rb, -S(=O)2N(Ra)C(=O)ORb, -S(=O)2N(Ra)C(=O)NRaRa, -NRaRa, -N(Ra)C(=O)Rb, -N(Ra)C(=O)ORb, -N(Ra)C(=O)NRaRa, -N(Ra)C(=NRa)NRaRa, -N(Ra)S(=O)2Rb, -N(Ra)S(=O)2NRaRa, -NRaC2-6alkylNRaRa or -NRaC2-6alkylORa. In another embodiment, in conjunction with any of the above and below embodiments, R1 is a saturated, partially saturated or unsaturated 9-, 10- or 11- membered bicyclic ring containing 1, 2, 3 or 4 atoms selected from N and O, wherein the number of O atoms in the ring is not greater than 2, wherein the carbon atoms of the ring are substituted by 0, 1 or 2 oxo groups, and wherein the bicyclic ring is substituted by 1, 2 or 3 substituents selected from Re, Rg, C1-4haloalkyl, halo, cyano, nitro, -C(=O)Rb, -C(=O)ORb, -C(=O)NRaRa, -C(=NRa)NRaRa, -OR1, -OC(=O)Rb, -OC(=O)NRaRa, -OC(=O)N(Ra)S(=O)2Rb, -OC2-6alkylNRaRa, -OC2-6alkylORa, -SRa, -S(=O)Rb, -S(=O)2Rb, -S(=O)2NRaRa, -S(=O)2N(Ra)C(=O)Rb, -S(=O)2N(Ra)C(=O)OR , -S(=O)2N(Ra)C(=O)NRaRa, -NRaRa, -N(Ra)C(=O)Rb, -N(Ra)C(=O)ORb, -N(Ra)C(=O)NRaRa, -N(Ra)C(=NRa)NRaRa, -N(Ra)S(=O)2Rb, -N(Ra)S(=O)2NRaRa, -NRaC2-6alkylNRaRa or -NRaC2-6alkylORa. In another embodiment, in conjunction with any of the above and below embodiments, R1 is a saturated, partially saturated or unsaturated 9-, 10- or 11- membered bicyclic ring containing 1, 2 or 3 N atoms, wherein the carbon atoms of the ring are substituted by 0, 1 or 2 oxo groups, and wherein the bicyclic ring is substituted by 1, 2 or 3 substituents selected from Re, R , Cι- haloalkyl, halo, cyano, nitro, -C(=O)Rb, -C(=O)OR , -C(=O)NRaRa, -C(=NRa)NRaRa, -OR1,
-OC(=O)Rb, -OC(=O)NRaRa, -OC(=O)N(Ra)S(=O)2Rb, -OC2-6alkylNRaRa, -OC2-6alkylORa, -SRa, -S(=O)Rb, -S(=O)2Rb, -S(=O)2NRaRa, -S(=O)2N(Ra)C(=O)R , -S(=O)2N(Ra)C(=O)ORb, -S(=O)2N(Ra)C(=O)NRaRa, -NRaRa, -N(Ra)C(=O)Rb, -N(Ra)C(=O)ORb, -N(Ra)C(=O)NRaRa, -N(Ra)C(=NRa)NRaRa, -N(Ra)S(=O)2R , -N(Ra)S(=O)2NRaRa, -NRaC2-5alkylNRaRa or -NRaC2-6alkylORa. In another embodiment, in conjunction with any of the above and below embodiments, R1 is naphthyl substituted by 1, 2 or 3 substituents selected from Re, Rg, C1-4haloalkyl, halo, cyano, nitro, -C(=O)Rb, -C(=O)ORb, -C(=O)NRaRa, -C(=NRa)NRaRa, -OR1, -OC(=O)R , -OC(=O)NRaRa, -OC(=O)N(Ra)S(=O)2Rb, -OC2-6alkylNRaRa, -OC2-6alkylORa, -SRa, -S(=O)R , -S(=O)2Rb, -S(=O)2NRaRa, -S(=O)2N(Ra)C(=O)R , -S(=O)2N(Ra)C(=O)ORb, -S(=O)2N(Ra)C(=O)NRaRa, -NRaRa, -N(Ra)C(=O)Rb, -N(Ra)C(=O)ORb, -N(Ra)C(=O)NRaRa, -N(Ra)C(=NRa)NRaRa, -N(Ra)S(=O)2R , -N(Ra)S(=O)2NRaRa, -NRaC2-6alkylNRaRa or -NRaC2-6alkylORa. In another embodiment, in conjunction with any of the above and below embodiments, R1 is a saturated, partially saturated or unsaturated 9-, 10- or 11- membered bicyclic ring containing 1 atom selected from N, O and S, wherein the carbon atoms of the ring are substituted by 0, 1 or 2 oxo groups, and wherein the bicyclic ring is substituted by 1, 2 or 3 substituents selected from Re, Rg, C1-4haloalkyl, halo, cyano, nitro, -C(=O)Rb, -C(=O)ORb, -C(=O)NRaRa, -C(=NRa)NRaRa, -OR1, -OC(=O)R , -OC(=O)NRaRa, -OC(=O)N(Ra)S(=O)2Rb, -OC2.6alkylNRaRa, -OC2-6alkylORa, -SRa, -S(=O)Rb, -S(=O)2Rb, -S(=O)2NRaRa, -S(=O)2Nr(Ra)C(=O)Rb, -S(=O)2N(Ra)C(=O)ORb, -S(=O)2N(Ra)C(=O)NRaRa, -NRaRa, -N(Ra)C(=O)R , -N(Ra)C(=O)OR , -N(Ra)C(=O)NRaRa, -N(Ra)C(=NRa)NRaRa, -N(Ra)S(=O)2Rb, -N(Ra)S(=O)2NRaRa, -NRaC2.5alkylNRaRa or -NRaC2-6alkylORa. In another embodiment, in conjunction with any of the above and below embodiments, R1 is selected from
Figure imgf000012_0001
Figure imgf000012_0002
, any of which are substituted by 1, 2 or 3 substituents selected from Re, R , Cι- haloalkyl, halo, cyano, nitro, -C(=O)Rb, -C(=O)ORb, -C(=O)NRaRa, -C(=NRa)NRaRa, -OR1, -OC(=O)Rb, -OC(=O)NRaRa, -OC(=O)N(Ra)S(=O)2R , -OC2-6alkylNRaRa, -OC2-6alkylORa, -SRa, -S(=O)Rb, -S(=O)2Rb, -S(=O)2NRaRa, -S(=O)2N(Ra)C(=O)Rb, -S(=O)2N(Ra)C(=O)ORb, -S(=O)2N(Ra)C(=O)NRaRa, -NRaRa, -N(Ra)C(=O)Rb, -N(Ra)C(=O)ORb, -N(Ra)C(=O)NRaRa, -N(Ra)C(=NRa)NRaRa, -N(Ra)S(=O)2Rb, -N(Ra)S(=O)2NRaRa, -NRaC2-6alkylNRaRa or -NRaC2-6alkylORa; X is independently in each instance N or C; and Y is independently in each instance C, N, O or S. In another embodiment, in conjunction with any of the above and below embodiments, R1 is
Figure imgf000012_0003
both of which are substituted by 1, 2 or 3 substituents selected from Re, R , Cι-4haloalkyl, halo, cyano, nitro, -C(=O)Rb, -C(=O)ORb, -C(=O)NRaRa, -C(=NRa)NRaRa, -OR1, -OC(=O)Rb, -OC(=O)NRaRa, -OC(=O)N(Ra)S(=O)2Rb, -OC2-6alkylNRaRa, -OC2-6alkylORa, -SRa, -S(=O)R , -S(=O)2Rb, -S(=O)2NRaRa, -S(=O)2N(Ra)C(=O)Rb, -S(=O)2N(Ra)C(=O)ORb, -S(=O)2N(Ra)C(=O)NRaRa, -NRaRa, -N(Ra)C(=O)R , -N(Ra)C(=O)ORb, -N(Ra)C(=O)NRaRa, -N(Ra)C(=NRa)NRaRa, -N(Ra)S(=O)2Rb, -N(Ra)S(=O)2NRaRa, -NRaC2-6alkylNRaRa or -NRaC2-6alkylOR ; and X is independently in each instance N or C. In another embodiment, in conjunction with any of the above and below embodiments, R is selected from
Figure imgf000013_0001
Figure imgf000013_0002
any of which are substituted by 1, 2 or 3 substituents selected from Re, Rg, Cι-4haloalkyl, halo, cyano, nitro, -C(=O)Rb, -C(=O)ORb, -C(=O)NRaRa, -C(=NRa)N aRa, -OR1, -OC(=O)Rb, -OC(=O)NRaRa, -OC(=O)N(Ra)S(=O)2Rb, -OC2-6alkylNRaRa, -OC2-6alkylORa, -SRa, -S(=O)Rb, -S(=O)2Rb, -S(=O)2NRaRa, -S(=O)2N(Ra)C(=O)Rb, -S(=O)2N(Ra)C(=O)ORb, -S(=O)2N(Ra)C(=O)NRaRa, -NRaRa, -N(Ra)C(=O)Rb, -N(Ra)C(=O)ORb, -N(Ra)C(=O)NRaRa, -N(Ra)C(=NRa)NRaRa, -N(Ra)S(=O)2Rb, -N(Ra)S(=O)2NRaRa, -NRaC2-6alkylNRaRa or -NRaC2-6alkylORa; X is independently in each instance N or C; and Y is independently in each instance C, N, O or S. In another embodiment, in conjunction with any of the above and below embodiments, R is a saturated, partially saturated or unsaturated 9-membered bicyclic ring containing 0, 1, 2 or 3 N atoms and 0, 1 or 2 atoms selected from O and S, and the bicyclic ring contains at least one N, O or S atom, and wherein the ring is substituted by 0, 1 or 2 oxo groups; wherein the bicyclic ring is substituted by 0, 1, 2 or 3 substituents selected from Re, C1-4haloalkyl, halo, cyano, nitro, -C(=O)Rb, -C(=O)ORb, -C(=O)NRaRa, -C(=NRa)NRaRa, -ORa, -OC(=O)Rb, -OC(=O)NRa a, -OC(=O)N(Ra)S(=O)2Rb, -OC2-6alkylNRaRa, -OC2-6alkylORa, -SRa, -S(=O)Rb, -S(=O)2R , -S(=O)2NRaRa, -S(=O)2N(Ra)C(=O)Rb, -S(=O)2N(Ra)C(=O)OR , -S(=O)2N(Ra)C(=O)NRaRa, -NRaRa, -N(Ra)C(=O)Rb, -N(Ra)C(=O)ORb, -N(Ra)C(=O)NRaRa, -N(Ra)C(=NRa)NRaRa, -N(Ra)S(=O)2Rb, -N(Ra)S(=O)2NRaRa, -NRaC2-6alkylNRaRa or -NRaC2-6alkylORa. In another embodiment, in conjunction with any of the above and below embodiments, R2 is a saturated, partially saturated or unsaturated 10-membered bicyclic ring containing 1, 2 or 3 N atoms and 0, 1 or 2 atoms selected from O and S, and the bicyclic ring contains at least one N, O or S atom, wherein the ring containing the connecting atom where R2 is attached to the general structure must have at least one N atom, and wherein the ring is substituted by 0, 1 or 2 oxo groups; wherein the bicyclic ring is substituted by 0, 1, 2 or 3 substituents selected from Re, Cι-4haloalkyl, halo, cyano, nitro, -C(=O)Rb, -C(=O)ORb, -C(=O)NRaRa, -C(=NRa)NRaRa, -ORa, -OC(=O)Rb, -OC(=O)NRaRa, -OC(=O)N(Ra)S(=O)2Rb, -OC2-6alkylNRaRa, -OC2-6alkylORa, -SRa, -S(=O)R , -S(=O)2Rb, -S(=O)2NRaRa, -S(=O)2N(Ra)C(=O)Rb, -S(=O)2N(Ra)C(=O)ORb, -S(=O)2N(Ra)C(=O)NRaRa, -NRaRa, -N(Ra)C(=O)Rb, -N(Ra)C(=O)ORb, -N(Ra)C(=O)NRaRa, -N(Ra)C(=NRa)NRaRa, -N(Ra)S(=O)2Rb, -N(Ra)S(=O)2NRaRa, -NRaC2.6alkylNRaRa or -NRaC2-6alkylORa. In another embodiment, in conjunction with any of the above and below embodiments, R2 is a saturated or partially saturated 9- or 10-membered bicyclic carbocyclic ring substituted by 0, 1 or 2 oxo groups and substituted by 1, 2 or 3 substituents selected from Re, C1-4haloalkyl, halo, cyano, nitro, -C(=O)Rb, -C(=O)OR , -C(=O)NRaRa, -C(=NRa)NRaRa, -ORa, -OC(=O)Rb, -OC(=O)NRaRa, -OC(=O)N(Ra)S(=O)2Rb, -OC2.6alkylNRaRa, -OC2-6alkylORa, -SRa, -S(=O)Rb, -S(=O)2Rb, -S(=O)2NRaRa, -S(=O)2N(Ra)C(=O)Rb, -S(=O)2N(Ra)C(=O)ORb, -S(=O)2N(Ra)C(=O)NRaRa, -NRaRa, -N(Ra)C(=O)Rb, -N(Ra)C(=O)ORb, -N(Ra)C(=O)NRaRa, -N(Ra)C(=NRa)NRaRa, -N(Ra)S(=O)2Rb, -N(Ra)S(=O)2NRaRa, -NRaC2-6alkylNRaRa or -NRaC2-6alkylORa. In another embodiment, in conjunction with any of the above and below embodiments, R2 is bicyclic ring selected from
Figure imgf000014_0001
Figure imgf000015_0001
wherein r= represents a single or double bond; and wherein the bicyclic ring is substituted by 0, 1, 2 or 3 substituents selected from C1-8alkyl, Cι-4haloalkyl, halo, cyano, nitro, -C(=O)Rb, -C(=O)ORb, -C(=O)NRaRa, -C(=NRa)NRaRa, -ORa, -OC(=O)Rb, -OC(=O)NRaRa, -OC(=O)N(Ra)S(=O)2Rb, -OC2-6alkylNRaRa, -OC2-6alkylORa, -SRa, -S(=O)Rb, -S(=O)2Rb, -S(=O)2NRaRa, -S(=O)2N(Ra)C(=O)Rb, -S(=O)2N(Ra)C(=O)ORb, -S(=O)2N(Ra)C(=O)NRaRa, -NRaRa, -N(Ra)C(=O)Rb, -N(Ra)C(=O)OR , -N(Ra)C(=O)NRaRa, -N(Ra)C(=NRa)NRaRa, -N(Ra)S(=O)2Rb, -N(Ra)S(=O)2NRaRa, -NRaC2-6alkylNRaRa or -NRaC2-6alkylORa; X is independently in each instance N or C; and Y is independently in each instance C, N, O or S. In another embodiment, in conjunction with any of the above and below embodiments, R2 is bicyclic ring selected from
Figure imgf000016_0001
wherein == represents a single or double bond; and wherein the bicyclic ring is substituted by 0, 1, 2 or 3 substituents selected from Cι-8alkyl, Cι-4haloalkyl, halo, cyano, nitro, -C(=O)Rb, -C(=O)ORb, -C(=O)NRaRa, -C(=NRa)NRaRa, -ORa, -OC(=O)Rb, -OC(=O)NRaRa, -OC(=O)N(Ra)S(=O)2Rb, -OC2-6alkylNRaRa, -OC2-6alkylORa, -SRa, -S(=O)Rb, -S(=O)2R , -S(=O)2NRaRa,
-S(=O)2N(Ra)C(=O)Rb, -S(=O)2N(Ra)C(=O)ORb, -S(=O)2N(Ra)C(=O)NRaRa, -NRaRa, -N(Ra)C(=O)Rb, -N(Ra)C(=O)ORb, -N(Ra)C(=O)NRaRa, -N(Ra)C(=NRa)NRaRa, -N(Ra)S(=O)2Rb, -N(Ra)S(=O)2NRaRa, -NRaC2-6alkylNRaRa or -NRaC2-6alkylORa; X is independently in each instance N or C; and Y is independently in each instance C, N, O or S. In another embodiment, in conjunction with any of the above and below embodiments, R2 is bicyclic ring selected from
Figure imgf000016_0002
wherein == represents a single or double bond; and wherein the bicyclic ring is substituted by 0, 1, 2 or 3 substituents selected from Cι-8alkyl, Cι-4haloalkyl, halo, cyano, nitro, -C(=O)Rb, -C(=O)OR , -C(=O)NRaRa, -C(=NRa)NRaRa, -ORa, -OC(=O)R >bD,
Figure imgf000017_0001
-OC2-6alkylNRaRa, -OC2-6alkylORa, -SRa, -S(=O)Rb, -S(=O)2Rb, -S(=O)2NRaRa, -S(=O)2N(Ra)C(=O)Rb, -S(=O)2N(Ra)C(=O)ORb, -S(=O)2N(Ra)C(=O)NRaRa, -NRaRa, -N(Ra)C(=O)Rb, -N(Ra)C(=O)OR , -N(Ra)C(=O)NRaRa, -N(Ra)C(=NRa)NRaRa, -N(Ra)S(=O)2R , -N(Ra)S(=O)2NRaRa, -NRaC2-6alkylNRaRa or -NRaC2-6alkylORa; X is independently in each instance N or C; and Y is independently in each instance C, N, O or S. In another embodiment, in conjunction with any of the above and below embodiments, R2 is bicyclic ring selected from
Figure imgf000017_0002
wherein -=. represents a single or double bond; and wherein the bicyclic ring is substituted by 0, 1, 2 or 3 substituents selected from Cι-8alkyl, Cι-4haloalkyl, halo, cyano, nitro, -C(=O)R , -C(=O)ORb, -C(=O)NRaRa, -C(=NRa)NRaRa, -ORa, -OC(=O)R , -OC(=O)NRaRa, -OC(=O)N(Ra)S(=O)2Rb, -OC2-6alkylNRaRa, -OC2-6alkylORa, -SRa, -S(=O)R , -S(=O)2Rb, -S(=O)2NRaRa, -S(=O)2N(Ra)C(=O)Rb, -S(=O)2N(Ra)C(=O)OR , -S(=O)2N(Ra)C(=O)NRaRa, -NRaRa, -N(Ra)C(=O)Rb, -N(Ra)C(=O)ORb, -N(Ra)C(=O)NRaRa, -N(Ra)C(=NRa)NRaRa, -N(Ra)S(=O)2R , -N(Ra)S(=O)2NRaRa, -NRaC2-6alkylNRaRa or -NRaC2-6alkylORa; X is independently in each instance N or C; and Y is independently in each instance C, N, O or S. In another embodiment, in conjunction with any of the above and below embodiments, J is =O or =S. In another embodiment, in conjunction with any of the above and below embodiments, J is =CHN02 or =CHSO2Rb. In another embodiment, in conjunction with any of the above and below embodiments, J is =N-CN, =NSO2Rb or =NRb. Another aspect of the invention relates to a method of treating acute, inflammatory and neuropathic pain, dental pain, general headache, migraine, cluster headache, mixed-vascular and non-vascular syndromes, tension headache, general inflammation, arthritis, rheumatic diseases, osteoarthritis, inflammatory bowel disorders, inflammatory eye disorders, inflammatory or unstable bladder disorders, psoriasis, skin complaints with inflammatory components, chronic inflammatory conditions, inflammatory pain and associated hyperalgesia and allodynia, neuropathic pain and associated hyperalgesia and allodynia, diabetic neuropathy pain, causalgia, sympathetically maintained pain, deafferentation syndromes, asthma, epithelial tissue damage or dysfunction, herpes simplex, disturbances of visceral motility at respiratory, genitourinary, gastrointestinal or vascular regions, wounds, burns, allergic skin reactions, pruritus, vitiligo, general gastrointestinal disorders, gastric ulceration, duodenal ulcers, diarrhea, gastric lesions induced by necrotising agents, hair growth, vasomotor or allergic rhinitis, bronchial disorders or bladder disorders, comprising the step of administering a compound according to any of the above embodiments. Another aspect of the invention relates to a pharmaceutical composition comprising a compound according to any of the above embodiments and a pharmaceutically-acceptable diluent or carrier. Another aspect of the invention relates to the use of a compound according to any of the above embodiments as a medicament. Another aspect of the invention relates to the use of a compound according to any of the above embodiments in the manufacture of a medicament for the treatment of acute, inflammatory and neuropathic pain, dental pain, general headache, migraine, cluster headache, mixed-vascular and non-vascular syndromes, tension headache, general inflammation, arthritis, rheumatic diseases, osteoarthritis, inflammatory bowel disorders, inflammatory eye disorders, inflammatory or unstable bladder disorders, psoriasis, skin complaints with inflammatory components, chronic inflammatory conditions, inflammatory pain and associated hyperalgesia and allodynia, neuropathic pain and associated hyperalgesia and allodynia, diabetic neuropathy pain, causalgia, sympathetically maintained pain, deafferentation syndromes, asthma, epithelial tissue damage or dysfunction, herpes simplex, disturbances of visceral motility at respiratory, genitourinary, gastrointestinal or vascular regions, wounds, bums, allergic skin reactions, pruritus, vitiligo, general gastrointestinal disorders, gastric ulceration, duodenal ulcers, diarrhea, gastric lesions induced by necrotising agents, hair growth, vasomotor or allergic rhinitis, bronchial disorders or bladder disorders. The compounds of this invention may have in general several asymmetric centers and are typically depicted in the form of racemic mixtures. This invention is intended to encompass racemic mixtures, partially racemic mixtures and separate enantiomers and diasteromers. Unless otherwise specified, the following definitions apply to terms found in the specification and claims: "Cα_βalkyl" means an alkyl group comprising a minimum of and a maximum of β carbon atoms in a branched, cyclical or linear relationship or any combination of the three, wherein and β represent integers. The alkyl groups described in this section may also contain one or two double or triple bonds. Examples of . 6alkyl include, but are not limited to the following:
Figure imgf000019_0001
"Benzo group", alone or in combination, means the divalent radical C.|.H4=, one representation of which is -CH=CH-CH=CH-, that when vicinally attached to another ring forms a benzene-like ring—for example tetrahydronapthalene, indole and the like. The terms "oxo" and "thioxo" represent the groups =O (as in carbonyl) and =S (as in thiocarbonyl), respectively.
"Halo" or "halogen" means a halogen atoms selected from F, Cl, Br and I. "Cv-whaloalkyl" means an alkyl group, as described above, wherein any number— at least one— of the hydrogen atoms attached to the alkyl chain are replaced by F, Cl, Br or I.
"Heterocycle" means a ring comprising at least one carbon atom and at least one other atom selected from N, O and S. Examples of heterocycles that may be found in the claims include, but are not limited to, the following:
Figure imgf000020_0001
Figure imgf000021_0001
"Available nitrogen atoms" are those nitrogen atoms that are part of a heterocycle and are joined by two single bonds (e.g. piperidine), leaving an external bond available for substitution by, for example, H or CH3. "Pharmaceutically-acceptable salt" means a salt prepared by conventional means, and are well known by those skilled in the art. The "pharmacologically acceptable salts" include basic salts of inorganic and organic acids, including but not limited to hydrochloric acid, hydrobromic acid, sulfuric acid, phosphoric acid, methanesulfonic acid, ethanesulfonic acid, malic acid, acetic acid, oxalic acid, tartaric acid, citric acid, lactic acid, fumaric acid, succinic acid, maleic acid, salicylic acid, benzoic acid, phenylacetic acid, mandelic acid and the like. When compounds of the invention include an acidic function such as a carboxy group, then suitable pharmaceutically acceptable cation pairs for the carboxy group are well known to those skilled in the art and include alkaline, alkaline earth, ammonium, quaternary ammonium cations and the like. For additional examples of "pharmacologically acceptable salts," see infra and Berge et al., J. Pharm. Sci. 66:1 (1977).
"Saturated or unsaturated" includes substituents saturated with hydrogens, substituents completely unsaturated with hydrogens and substituents partially saturated with hydrogens.
"Leaving group" generally refers to groups readily displaceable by a nucleophile, such as an amine, a thiol or an alcohol nucleophile. Such leaving groups are well known in the art. Examples of such leaving groups include, but are not limited to, N-hydroxysuccinimide, N-hydroxybenzotriazole, halides, triflates, tosylates and the like. Preferred leaving groups are indicated herein where appropriate.
"Protecting group" generally refers to groups well known in the art which are used to prevent selected reactive groups, such as carboxy, amino, hydroxy, mercapto and the like, from undergoing undesired reactions, such as nucleophilic, electrophilic, oxidation, reduction and the like. Preferred protecting groups are indicated herein where appropriate. Examples of amino protecting groups include, but are not limited to, aralkyl, substituted aralkyl, cycloalkenylalkyl and substituted cycloalkenyl alkyl, allyl, substituted allyl, acyl, alkoxycarbonyl, aralkoxycarbonyl, silyl and the like. Examples of aralkyl include, but are not limited to, benzyl, ortho- methylbenzyl, trityl and benzhydryl, which can be optionally substituted with halogen, alkyl, alkoxy, hydroxy, nitro, acylamino, acyl and the like, and salts, such as phosphonium and ammonium salts. Examples of aryl groups include phenyl, naphthyl, indanyl, anthracenyl, 9-(9-phenylfluorenyl), phenanthrenyl, durenyl and the like. Examples of cycloalkenylalkyl or substituted cycloalkylenylalkyl radicals, preferably have 6-10 carbon atoms, include, but are not limited to, cyclohexenyl methyl and the like. Suitable acyl, alkoxycarbonyl and aralkoxycarbonyl groups include benzyloxycarbonyl, t-butoxycarbonyl, iso-butoxycarbonyl, benzoyl, substituted benzoyl, butyryl, acetyl, trifluoroacetyl, trichloro acetyl, phthaloyl and the like. A mixture of protecting groups can be used to protect the same amino group, such as a primary amino group can be protected by both an aralkyl group and an aralkoxycarbonyl group. Amino protecting groups can also form a heterocyclic ring with the nitrogen to which they are attached, for example, l,2-bis(methylene)benzene, phthalimidyl, succinimidyl, maleimidyl and the like and where these heterocyclic groups can further include adjoining aryl and cycloalkyl rings. In addition, the heterocyclic groups can be mono-, di- or tri- substituted, such as nitrophthalimidyl. Amino groups may also be protected against undesired reactions, such as oxidation, through the formation of an addition salt, such as hydrochloride, toluenesulfonic acid, trifluoroacetic acid and the like. Many of the amino protecting groups are also suitable for protecting carboxy, hydroxy and mercapto groups. For example, aralkyl groups. Alkyl groups are also suitable groups for protecting hydroxy and mercapto groups, such as tert-butyl. Silyl protecting groups are silicon atoms optionally substituted by one or more alkyl, aryl and aralkyl groups. Suitable silyl protecting groups include, but are not limited to, trimethylsilyl, triethylsilyl, triisopropylsilyl, tert- butyldimethylsilyl, dimethylphenylsilyl, l,2-bis(dimethylsilyl)benzene, l,2-bis(dimethylsilyl)ethane and diphenylmethylsilyl. Silylation of an amino groups provide mono- or di-silylamino groups. Silylation of aminoalcohol compounds can lead to a N,N,O-trisilyl derivative. Removal of the silyl function from a silyl ether function is readily accomplished by treatment with, for example, a metal hydroxide or ammonium fluoride reagent, either as a discrete reaction step or in situ during a reaction with the alcohol group. Suitable silylating agents are, for example, trimethylsilyl chloride, tert-butyl-dimethylsilyl chloride, phenyldimethylsilyl chloride, diphenylmethyl silyl chloride or their combination products with imidazole or DMF. Methods for silylation of amines and removal of silyl protecting groups are well known to those skilled in the art. Methods of preparation of these amine derivatives from corresponding amino acids, amino acid amides or amino acid esters are also well known to those skilled in the art of organic chemistry including amino acid amino acid ester or aminoalcohol chemistry. Protecting groups are removed under conditions which will not affect the remaining portion of the molecule. These methods are well known in the art and include acid hydrolysis, hydrogenolysis and the like. A preferred method involves removal of a protecting group, such as removal of a benzyloxycarbonyl group by hydrogenolysis utilizing palladium on carbon in a suitable solvent system such as an alcohol, acetic acid, and the like or mixtures thereof. A t- butoxycarbonyl protecting group can be removed utilizing an inorganic or organic acid, such as HC1 or trifluoroacetic acid, in a suitable solvent system, such as dioxane or methylene chloride. The resulting amino salt can readily be neutralized to yield the free amine. Carboxy protecting group, such as methyl, ethyl, benzyl, tert-butyl, 4-methoxyphenylmethyl and. the like, can be removed under hydrolysis and hydrogenolysis conditions well known to those skilled in the art. It should be noted that compounds of the invention may contain groups that may exist in tautomeric forms, such as cyclic and acyclic amidine and guanidine groups, heteroatom substituted heteroaryl groups (Y1 = O, S, NR), and the like, which are illustrated in the following examples:
Figure imgf000024_0001
and though one form is named, described, displayed and/or claimed herein, all the tautomeric forms are intended to be inherently included in such name, description, display and/or claim. Prodrugs of the compounds of this invention are also contemplated by this invention. A prodrug is an active or inactive compound that is modified chemically through in vivo physiological action, such as hydrolysis, metabolism and the like, into a compound of this invention following administration of the prodrug to a patient. The suitability and techniques involved in making and using prodrugs are well known by those skilled in the art. For a general discussion of prodrugs involving esters see Svensson and Tunek Drug Metabolism Reviews 165 (1988) and Bundgaard Design of Prodrugs, Elsevier (1985). Examples of a masked carboxylate anion include a variety of esters, such as alkyl (for example, methyl, ethyl), cycloalkyl (for example, cyclohexyl), aralkyl (for example, benzyl, p-methoxybenzyl), and alkylcarbonyloxyalkyl (for example, pivaloyloxymethyl). Amines have been masked as arylcarbonyloxymethyl substituted derivatives which are cleaved by esterases in vivo releasing the free drug and formaldehyde (Bungaard J. Med. Chem. 2503 (1989)). Also, drugs containing an acidic NH group, such as imidazole, imide, indole and the like, have been masked with N- acyloxymethyl groups (Bundgaard Design of Prodrugs, Elsevier (1985)).
Hydroxy groups have been masked as esters and ethers. EP 039,051 (Sloan and Little, 4/11/81) discloses Mannich-base hydroxamic acid prodrugs, their preparation and use. The specification and claims contain listing of species using the language "selected from . . . and . . ." and "is . . . or . . ." (sometimes referred to as Markush groups). When this language is used in this application, unless otherwise stated it is meant to include the group as a whole, or any single members thereof, or any subgroups thereof. The use of this language is merely for shorthand purposes and is not meant in any way to limit the removal of individual elements or subgroups as needed.
Experimental Unless otherwise noted, all materials were obtained from commercial suppliers and used without further purification. All parts are by weight and temperatures are in degrees centigrade unless otherwise indicated. All microwave assisted reactions were conducted with a Smith Synthesizer from Personal Chemistry, Uppsala, Sweden. All compounds showed NMR spectra consistent with their assigned structures. Melting points were determined on a Buchi apparatus and are uncorrected. Mass spectral data was determined by electrospray ionization technique. All examples were purified to >90% purity as determined by high-performance liquid chromatography. Unless otherwise stated, reactions were run at room temperature. The following abbreviations are used:
DMSO - dimethyl sulfoxide
DMF - N,N-dimethylformamide
THF - tetrahydrofuran
Et2O - diethyl ether
EtOAc - ethyl acetate
MeOH - methyl alcohol
EtOH - ethyl alcohol
MeCN - acetonitrile
Mel - iodomethane
NMP - 1 -methyl-2-pyrrolidinone
DCM - dichloromethane
TFA - trifuoroacetic acid
Sat. - saturated h - hour min - minutes
Example 1
Figure imgf000026_0001
(a) 6-Bromo-naphthalene-2-carbonyl chloride. To a mixture of 6-bromo- naphthalene-2-carboxylic acid (1 g, 3.9 mmol, Lancaster) and CH2C12 (25 rnL) was added oxalyl chloride (2.98 mL, 2 M solution in CH2C12, 5.8 mmol, Aldrich) and DMF (2 drops) with stirring at 0 °C. The reaction mixture was stined at room temperature for 18 h and the solvents were removed in vacua to afford the title compound as a light-brown amorphous solid, which was used in the next step withouth purification. MS (ESI, pos. ion) m/z: 266 (M+l).
Figure imgf000027_0001
(b) 6-Bromo-N-(lH-indol-7-yl)-2-naphthalenecarboxarnide. A mixture of 6- bromo-naphthalene-2-carbonyl chloride, Example 1(a), (100 mg, 0.37 mmol), 7- aminoindole (98 mg, 0.74 mmol, Lancaster), dimethylamino pyridine (20 mg, Aldrich) and pyridine (3 mL) was stirred at room temperature for 18 h. The reaction mixture was evaporated in vacuo and the residue was dissolved in DMSO, and purified by preparative HPLC (gradient 0.1% trifluoroacetic acid in acetonitrile) to provide the title compound as a brown amorphous solid. MS (ESI, pos. ion) m/z: 366 (M+l).
Example 2
Figure imgf000027_0002
(2R)-6-Bromo-N-(2-(hydroxymethyl)-2,3-dihydro-l,4-benζodioxin-6-yl)-2- naphthalenecarboxamide. This material was prepared analogous to the procedure described for Example 1(b). 6-Bromo-naphthalene-2-carbonyl chloride, Example 1(a), (127 mg, 0.47 mmol) reacted with (2R)-(6-amino-2,3-dihydrobenzol[l,4]dioxin-2- yl)methanol (85.6 mg, 0.47 mmol, prepared according to the procedure described in WO03099284) to give the title compound as a dark-brown amorphous solid. MS (ESI, pos. ion.) m/z: 416 (M+l). Example 3
Figure imgf000028_0001
6-Bromo-naphthalene-2-carboxylic acid (2-amino-benzothiazol-4-yl)-amide. This material was prepared analogous to the procedure described for Example 1(b). 6-Bromo- naphthalene-2-carbonyl chloride, Example 1(a), (127 mg, 0.47 mmol) reacted with benzothiazole-2,4-diamine (77 mg, 0.47 mmol, prepared according to the procedure described in WO03099284) to give the title compound as an amorphous solid. IVIS (ESI, pos. ion.) m/z: 400 (M+l).
Example 4
Figure imgf000028_0002
6-Bromo-naphthalene-2-carboxylic acid (2-acetylamino-benzothiazol-4-yl)-amide. This material was prepared analogous to the procedure described for Example 1(b). 6-Bromo- naphthalene-2-carbonyl chloride, Example 1(a), (98 mg, 0.36 mmol) reacted with N-(4- amino-benzothiazol-2-yl)-acetamide (50 mg, 0.24 mmol, prepared according to the procedure described in WO03099284) to give the title compound as a solid. Mp 241.6 °C. MS (ESI, pos. ion.) m/z: 441 (M+l). Example 5
Figure imgf000028_0003
6-Bromo-naphthalene-2-carboxylic acid (lH-benζoimidaζol-5-yl)-amide. This material was prepared analogous to the procedure described for Example 1(b). 6-Bromo- naphthalene-2-carbonyl chloride, Example 1(a), reacted with lH-benzoimidazol-5- ylamine (TimTec) to give the title compound as an amorphous solid. MS (ESI, pos. ion.) m/z: 366 (M+l). Example 6
Figure imgf000029_0001
6-Bromo-naphthalene-2-carboxylic acid quinolin-3-ylamide. This material was prepared analogous to the procedure described for Example 1(b). 6-Bromo-naphthalene-2-carbonyl chloride, Example 1(a), reacted with 3-aminoquinoline (Aldrich) to give the title compound as a green amorphous solid. MS (ESI, pos. ion.) m/z: 377 (M+l). Example 7
Figure imgf000029_0002
(a) 6-Trifluoromethyl-benζo[b]thiophene-2-carbonyl chloride. This material was prepared analogous to the procedure described for Example 1(a). 6- Trifluoromethyl-benzo[b]thiophene-2-carboxylic acid (220 mg, 0.89 mmol, prepared according to the procedure described in EP483647) reacted with oxalyl chloride (0.89 mL, 2 M solution in CH2C12, 1.78 mmol, Aldrich) to give the the crude title compound as an off-white solid, which was used in the next step without purification.
Figure imgf000029_0003
(b) N-(5-Trifluoromethyl-pyridin-2-yl)-4-(3-trifluoromethyl-pyridin-2-yl)- benzamide. This material was prepared analogous to the procedure described for Example 1(b) by reacting 6-trifluoromethyl-benzo[b]thiophene-2-carbonyl chloride, Example 7(a), (84 mg, 0.32 mmol) with N-(4-amino-benzothiazol-2-yl)- acetamide (52 mg, 0.25 mmol, prepared according to the procedure described in WO03099284). Purification of the crude product by silica gel column chromatography (gradient, 20 to 60% EtOAc/hexane) provided the title compound as a light-yellow solid. Mp 285.4-285.9 °C. MS (ESI, pos. ion.) m/z: 436(M+1). Example 8
Figure imgf000030_0001
(a) l-Isopropyl-2-trifluoromethyl-lH-benζoimidaζole-5-carbonyl chloride hydrochloride. This material was prepared analogous to the procedure described for Example 1 (a), by reacting l-isopropyl-2-trifluoromethyl-lH-benzoimidazole- 5-carboxylic acid (414 mg, 1.52 mmol, Oakwood) with oxalyl chloride (1.52 mL, 2 M solution in CH2C12, 3.04 mmol, Aldrich). The crude title compound was isolated as an off-white solid and used in the next step without purification.
Figure imgf000030_0002
(b) l-Isopropyl-2-trifluoromethyl-lH-benzoimidazole-5-carboxylic acid (2-acetylamino- benzothiazol-4-yl)-amide. This material was prepared analogous to the procedure described for Example 1 (b) by reacting l-isopropyl-2-trifluoromethyl-lH- benzoimidazole-5-carbonyl chloride hydrochloride, Example 8(a), (83 mg, 0.28 mmol) with N-(4-amino-benzothiazol-2-yl)-acetamide (50 mg, 0.24 mmol, prepared according to the procedure described in WO03099284). The crude product was purified by silica gel column chromatography (gradient, 50 to 90% EtOAc/hexane) to afford the title compound as as a white film. MS (ESI, pos. ion.) m/z: 462 (M+l). Example 9
Figure imgf000031_0001
(a) l,3-Dioxo-l,3-dihydro-iso (2,3-dihydro- benzo[l,4]dioxin-6-yl)-amide. A mixture of trimellitic anhydride chloride (2.1 g, 9.97 mmol, Aldrich) and l,4-benzodioxan-6-amine (1.5 g, 9.98 mmol, Aldrich) in dichlorobenzene (20 mL) was heated at 150 °C with stirring for 2 h. The reaction mixture was left to reach room temperature during which an yellow solid precipitated. The solid was filtered, washed with dichlorobenzene (20 mL) and dichloromethane (20 mL), and dried in vacuo to give the title compound as an yellow amorphous solid. MS (ESI, pos. ion) m/z: 326.5 (M+l).
Figure imgf000031_0002
(b) 2-tert-Butyl-l,3-dioxo-2,3-dihydro-lH-isoindole-5-carboxylic acid (2,3- dihydro-benζo[l,4]dioxin-6-yl)-arnide. tert-Butylarnine (0.21 mL, 2 mmol, Aldrich) was added dropwise to a solution of l,3-dioxo-l,3-dihydro- isobenzofuran-5-carboxylic acid (2,3-dihydro-benzo[ 1 ,4]dioxin-6-yl)-amide (0.65 g, 2 mmol) in glacial AcOH (3 mL) and DMSO (1 mL) with stirring at room temperature. The mixture was stirred at room temperature for 1 h and heated at 110 °C with stirring under nitrogen atmosphere for 18 h. The reaction mixture was cooled to room temperature, diluted with EtOAc (50 mL), washed with satd. aq. NaHCO3 solution (3x) and water, dried over Na2SO4 and filtered. The filtrate was evaporated in vacuo and the residue was purified by silica gel column chromatography (30% EtOAc/hexane) to give the title compound as a light- yellow solid. MS (ESI, pos. ion) m/z: 381.3 (M+l). Example 10
Figure imgf000032_0001
(a) (35)-7-tert-Butyl-l,2,3,4-tetrahydro-isoquinoline-3-carboxylic acid. (This material was prepared according to the method of Ma, D.; Ma, Z.; Kozikowski, A. P.; Pshenichkin, S.; Wroblewski, J. T. Bioorg. Med. Chem. Lett. 1998, 8, 2447-
2450). To a 250-mL, round-bottomed flask, equipped with magnetic stirring and reflux condenser, was added 2-tert-butoxycarbonylamino-3-(4-tert-butyl-phenyl)- propionic acid (5.0 g, 15.6 mmol, Bachem, Boc-p-tBu-Phe-OH), formaldehyde
(50 mL, 37 wt. % in H2O, Aldrich) and cond HC1 (30 mL). The reaction mixture was heated at 90 °C with stirring for 4 h. The reaction mixture was cooled to room temperature and the solvents were removed in vacuo to provide the title compound, which was used in the next step withouth purification. MS (ESI, pos. ion) m/z: 234 (M+l).
Figure imgf000032_0002
(b) (3S)-7-tert-Butyl-3,4-dihydro-lH-isoquinoline-2,3-dicarboxylic acid 2-tert- butyl ester. (3S)-7-tert-Butyl-l,2,3,4-tetrahydro-isoquinoline-3-carboxylic acid, Example 10(a), was dissolved in THF (140 mL) and treated with 5% aq. K2CO3 (140 mL) and di-t-butyl dicarbonate (4.8 g, 22 mmol, Aldrich). The reaction mixture was stirred at 25 °C overnight and acidified to pH 5 with 1 N HC1. The mixture was extracted with EtOAc (300 mL) and the organic phase was washed with satd NaCl (100 mL) and H2O (120 mL), dried over Na2SO4, filtered and concentrated in vacuo. The residue was purified by silica gel column chromatography (2:1 hexane/EtOAc) to give the title compound. MS (ESI, neg. ion) m z: 333 (M-l).
Figure imgf000033_0001
(c) (3S)-7-tert-But -3-(2,3-dihydro-benzo[l dihydro-lH-isoquinoline-2-carboxylic acid tert-butyl ester. To a 250-rnL, round- bottomed flask equipped with magnetic stirring was added (3S)-7-tert-butyl-3,4- dihydro-lH-isoquinoline-2,3-dicarboxylic acid 2-tert-butyl ester, Example 10(b), (1.5 g, 4.65 mmol), DMF (15 mL), l,4-benzodioxan-6-amine (700 mg, 4.65 mmol, Aldrich), dimethylaminopropyl-3-ethylcarbodiimide hydrochloride (1.25 g, 6.5 mmol, Aldrich) and N,N-diisopropylethylamine (2.5 mL, 13.95 mmol, Aldrich). The reaction mixture was stirred at 25 °C for 18 h and concentrated in vacuo. The residue was dissolved in EtOAc (35 mL), washed with H2O (2x15 mL), dried over Νa2SO4 and filtered. The filtrate was concentrated in vacuo and the residue was purified by silica gel column chromatography (3:1 hexane/EtOAc) to give the title compound, which was used directly in the next step. MS (ESI, pos. ion) m/z: 467 (M+l).
Figure imgf000033_0002
(d) (3S)-7-tert-Butyl-l,2,3,4-tetrahydro-isoquinoline-3-carboxylic acid (2,3- dihydro-benzo[l,4]dioxin-6-yl)-amide hydrochloride. A mixture of (3S)-7-tert- butyl-3-(2,3-dihydro-benzo[l,4]dioxin-6-ylcarbamoyl)-3,4-dihydro-lH- isoquinoline-2-carboxylic acid tert-butyl ester, Example 10(c), and 4.0 N HCI in dioxane (10 mL, Aldrich) was stirred at 25 °C for 1 h. The solvent was removed in vacuo to provide the title compound. Mp 134 °C. MS (ESI, pos. ion) m/z: 367 (M+l). Example 11
Figure imgf000034_0001
7-tert-Butyl-isoquinoline-3-carboxylic acid (2,3-dihydro-benzo[l ,4]dioxin-6-yl)- amide. (The title product was prepared according to the procedure of E. D. Cox; T. J. Hagen; R. M. McKeman; J. M. Cook, Med. Chem. Rest. 1995, 5, 710-718). To a solution of (3S)-7-tert-butyl-l,2,3,4-tetrahydro-isoquinoline-3-carboxylic acid (2,3-dihydro-benzo[l,4]dioxin-6-yl)-amide hydrochloride, Example 10(d), (80 mg, 0.219 mmol) in toluene (10 mL) was added manganese dioxide (110 mg, 1.1 mmol). The reaction mixture was stirred at 70 °C under N2 for 1.5 h, filtered through a pad of Celite®, and the filtrate was evaporated in vacuo. The residue was purified by silica gel column chromatography (8:1 hexane/EtOAc) to give the title compound as an yellow solid. Mpl54-157 °C. MS (ESI, pos. ion) m/z: 363 (M+l).
Example 12
Figure imgf000034_0002
(a) 6-Trifluoromethyl-thieno[3,2-b]pyridine-2-carboxylic acid. To a 250-mL, round-bottomed flask, equipped with magnetic stirring, was added ethyl 6-
(trifluoromethyl)-thieno-[5,2-b]-pyrimidine-2-carboxylate (1.0 g, 3.6 mmol,
Maybridge), 5 N NaOH (8 mL) and THF (8 mL). The reaction mixture was stirred at room temperature for 7 h. The mixture was acidified to pH 5 by adding 10%
HCI and the product was extracted with EtOAc (25 mL). The organic phase was washed with H2O (2x15 mL), dried over Na2SO4, filtered and concentrated in vacuo to yield the title compound as a white solid. MS (ESI, pos. ion) m/z: 248
(M+l).
Figure imgf000035_0001
(b) 6-Trifluoromethyl-thieno[3,2-b]pyridine-2-carboxylic acid (2,3-dihydro- benzo[l,4]dioxin-6-yl)-amide. This material was prepared analogous to the procedure described for Example 10(c). 6-Trifluoromethyl-thieno[3,2-b]pyridine- 2-carboxylic acid, Example 12(a), (0.20 g, 0.81 mmol) reacted with 1,4- benzodioxan-6-amine (0.12 g, 0.81 mmol, Aldrich) to give the title compound as an yellow solid. Mp 247 °C. MS (ESI, pos. ion) m/z: 381 (M+l). Example 13
Figure imgf000035_0002
(a) Ethyl 7-(trifluoromethyl)-4-chloro-quinoline-2-carboxylate. To a 250-mL round-bottomed flask, equipped with magnetic stirring, was added ethyl 7-
(trifluoromethyl)-4-hydroxy-quinoline-2-carboxylate (0.60 g, 2.1 mmol, Aldrich) and POCl3 (3.9 mL, 42 mmol, Aldrich). The reaction mixture was heated at reflux under nitrogen for 3 h, cooled to room temperature and concentrated in vacuo. The residue was taken in EtOAc (100 mL) and was washed with 5%
Na2CO3 (40 mL), H2O (40 mL), dried over Na2SO4, filtered and concentrated in vacuo to yield the title compound. MS (ESI, pos. ion) m/z: 304 (M+l).
Figure imgf000035_0003
(b) 4-Chloro-7-trifluoromethyl-quinoline-3-carboxylic acid. This material was prepared analogous to the procedure described for Example 12(a). Ethyl 7-
(trifluoromethyl)-4-chloro-quinoline-2-carboxylate, Example 13(a), (0.60 g, 2.0 mmol) reacted withl N NaOH (10 mL, 10 mmol) to give the title compound. MS
(ESI, pos. ion) m/z: 276 (M+l).
Figure imgf000036_0001
(c) 4-Chloro-7-trifluoromethyl-quinoline-3-carboxylic acid (2,3-dihydro- benzo[l,4]dioxin-6-yl)-amide. This material was prepared analogous to the procedure described for Example 10 (c). 4-Chloro-7-trifluoromethyl-quinoline-3- carboxylic acid, Example 13(b), (0.23 g, 0.85 mmol) reacted with 1,4- benzodioxan-6-amine (0.13 g, 0.85 mmol, Aldrich) to give the title compound as a light yellow solid. MP 296 °C. MS (ESI, pos. ion) m/z: 409 (M+l).
Example 14
Figure imgf000036_0002
6-Bromo-naphthalene-2-carboxylic acid (2,3-dihydro-benzo [ 1 ,4] dioxin-6-yl)- amide. This material was prepared analogous to the procedure described for Example 10(c). 6-Bromo-naphthalene-2-carboxylic acid (0.5 g, 2 mmol, Lancaster) reacted with l,4-benzodioxan-6-amine (0.332 g, 2.2 mmol, Aldrich) to give the title compound as a light-yellow solid. Mp 222.7 °C. MS (ESI, pos. ion) m/z: 384 (M+l).
Capsaicin-induced Ca2+ influx in primary dorsal root ganglion neurons Embryonic 19 day old (El 9) dorsal root ganglia (DRG) were dissected from timed-pregnant, terminally anesthetized Sprague-Dawley rats (Charles River, Wilmington, MA) and collected in ice-cold L-15 media (Life Technologies, Grand Island, NY) containing 5% heat inactivated horse serum (Life
Technologies). The DRG were then dissociated into single cell suspension using a papain dissociation system (Worthington Biochemical Corp., Freehold, NJ). The dissociated cells were pelleted at 200 x g for 5 min and re-suspended in EBSS containing 1 mg/ml ovomucoid inhibitor, 1 mg/ml ovalbumin and 0.005% DNase. Cell suspension was centrifuged through a gradient solution containing 10 mg/ml ovomucoid inhibitor, 10 mg/ml ovalbumin at 200 x g for 6 min to remove cell debris; and filtered through a 88-μm nylon mesh (Fisher Scientific, Pittsburgh, PA) to remove any clumps. Cell number was determined with a hemocytometer and cells were seeded into poly-omithine 100 μg/ml (Sigma) and mouse laminin 1 μg/ml (Life Technologies)-coated 96-well plates at 10 x 103 cells/well in complete medium. The complete medium consists of minimal essential medium (MEM) and Ham's F12, 1:1, penicillin (100 U/ml), and streptomycin (100 μg/ml), and nerve growth factor (lOng/ml), 10% heat inactivated horse serum (Life Technologies). The cultures were kept at 37 °C, 5% CO2 and 100% humidity. For controlling the growth of non-neuronal cells, 5-fiuoro-2'-deoxyuridine (75μM) and uridine (180μM) were included in the medium. Activation of VR1 is achieved in these cellular assays using either a capsaicin stimulus (ranging from 0.01-10μM) or by an acid stimulus (addition of 30mM Hepes/Mes buffered at pH 4.1). Compounds are also tested in an assay format to evaluate their agonist properties at VR1. Capsaicin Antagonist Assay: E-19 DRG cells at 5 days in culture are incubated with serial concentrations of VR1 antagonists, in HBSS (Hanks buffered saline solution supplemented with BSA O.lmg/ml and 1 mM Hepes at pH 7.4) for 15 min, 37 °C. Cells are then challenged with a NR1 agonist, capsaicin 200 nM, in activation buffer containing O.lmg/ml BSA, 15 mM Hepes, pH 7.4, and 10 μCi/ml 45Ca2+ (Amersham) in Ham's F12 for 2 min at 37 °C. Acid Antagonist Assay: Compounds are pre-incubated with E-19 DRG cells for 2 minutes prior to addition of Calcium-45 in 30mM Hepes/Mes buffer (Final Assay pH 5) and then left for an additional 2 minutes prior to compound washout. Final 45Ca (Amersham CES3-2mCi) at 10 μCi/mL. Agonist Assay: Compounds are incubated with E-19 DRG cells for 2 minutes in the presence of Calcium-45 prior to compound washout. Final 45Ca2+
(Amersham CES3-2mCi) at lOμCi/mL.
Compound Washout and Analysis: Assay plates are washed using an ELX405 plate washer (Bio-Tek Instruments Inc.) immediately after functional assay. Wash 3 X with PBS Mg2+/Ca2+ free, 0.1 mg/mL BSA. Aspirate between washes. Read plates using a MicroBeta Jet (Wallac Inc.). Compound activity is then calculated using appropriate computational algorithms. 45Calcium2+ Assay Protocol
Compounds may be assayed using Chinese Hamster Ovary cell lines stably expressing either human VR1 or rat VR1 under a CMN promoter. Cells can be cultured in Growth Medium, routinely passaged at 70% confluency using trypsin and plated in the assay plate 24 hours prior to compound evaluation. Possible Growth Medium: DMEM, high glucose (Gibco 11965-084). 10% Dialyzed serum (Hyclone SH30079.03). IX Νon-Essential Amino Acids (Gibco 11140-050). IX Glutamine-Pen-Strep (Gibco 10378-016). Geneticin, 450μg/mL (Gibco 10131-035). Compounds can be diluted in 100% DMSO and tested for activity over several log units of concentration [40μM-2pM]. Compounds may be further diluted in HBSS buffer (pH 7.4) 0.1 mg/mL BSA, prior to evaluation. Final DMSO concentration in assay would be 0.5%. Each assay plate can be controlled with a buffer only and a known antagonist compound (either capsazepine or one of the described VR1 antagonists). Activation of NR1 can be achieved in these cellular assays using either a capsaicin stimulus (ranging from 0.1-lμM) or by an acid stimulus (addition of 30mM Hepes/Mes buffered at pH 4.1). Compounds may also tested in an assay format to evaluate their agonist properties at NR1. Capsaicin Antagonist Assay: Compounds may be pre-incubated with cells (expressing either human or rat VR1) for 2 minutes prior to addition of Calcium- 45 and Capsaicin and then left for an additional 2 minutes prior to compound washout. Capsaicin (0.5nM) can be added in HAM's F12, 0.1 mg/mL BSA, 15 mM Hepes at pH 7.4. Final 45Ca (Amersham CES3-2mCi) at lOμCi/mL. Acid Antagonist Assay: Compounds can be pre-incubated with cells (expressing either human or rat VR1) for 2 minutes prior to addition of Calcium-45 in 30mM Hepes/Mes buffer (Final Assay pH 5) and then left for an additional 2 minutes prior to compound washout. Final 45Ca (Amersham CES3-2mCi) at 10/ Ci/mL. Agonist Assay: Compounds can be incubated with cells (expressing either human or rat NR1) for 2 minutes in the presence of Calcium-45 prior to compound washout. Final 45Ca (Amersham CES3-2mCi) at lO Ci/mL. Compound Washout and Analysis: Assay plates can be washed using an ELX405 plate washer (Bio-Tek Instruments Inc.) immediately after functional assay. One can wash 3 X with PBS Mg2+/Ca2+ free, 0.1 mg/mL BSA, aspirating between washes. Plates may be read using a MicroBeta Jet (Wallac Inc.). Compound activity may then calculated using appropriate computational algorithms. Useful nucleic acid sequences and proteins may be found in U.S. Patent Νos. 6,335,180, 6, 406,908 and 6,239,267, herein incorporated by reference in their entirety. For the treatment of vanilloid-receptor-diseases, such as acute, inflammatory and neuropathic pain, dental pain, general headache, migraine, cluster headache, mixed- vascular and non- vascular syndromes, tension headache, general inflammation, arthritis, rheumatic diseases, osteoarthritis, inflammatory bowel disorders, inflammatory eye disorders, inflammatory or unstable bladder disorders, psoriasis, skin complaints with inflammatory components, chronic inflammatory conditions, inflammatory pain and associated hyperalgesia and allodynia, neuropathic pain and associated hyperalgesia and allodynia, diabetic neuropathy pain, causalgia, sympathetically maintained pain, deafferentation syndromes, asthma, epithelial tissue damage or dysfunction, herpes simplex, disturbances of visceral motility at respiratory, genitourinary, gastrointestinal or vascular regions, wounds, bu s, allergic skin reactions, pruritus, vitiligo, general gastrointestinal disorders, gastric ulceration, duodenal ulcers, diarrhea, gastric lesions induced by necrotising agents, hair growth, vasomotor or allergic rhinitis, bronchial disorders or bladder disorders, the compounds of the present invention may be administered orally, parentally, by inhalation spray, rectally, or topically in dosage unit formulations containing conventional pharmaceutically acceptable carriers, adjuvants, and vehicles. The term parenteral as used herein includes, subcutaneous, intravenous, intramuscular, intrastemal, infusion techniques or intraperitoneally. Treatment of diseases and disorders herein is intended to also include the prophylactic administration of a compound of the invention, a pharmaceutical salt thereof, or a pharmaceutical composition of either to a subject (i.e., an animal, preferably a mammal, most preferably a human) believed to be in need of preventative treatment, such as, for example, pain, inflammation and the like. The dosage regimen for treating vanilloid-receptor-mediated diseases, cancer, and/or hyperglycemia with the compounds of this invention and/or compositions of this invention is based on a variety of factors, including the type of disease, the age, weight, sex, medical condition of the patient, the severity of the condition, the route of administration, and the particular compound employed. Thus, the dosage regimen may vary widely, but can be determined routinely using standard methods. Dosage levels of the order from about 0.01 mg to 30 mg per kilogram of body weight per day, preferably from about 0.1 mg to 10 mg/kg, more preferably from about 0.25 mg to 1 mg/kg are useful for all methods of use disclosed herein. The pharmaceutically active compounds of this invention can be processed in accordance with conventional methods of pharmacy to produce medicinal agents for administration to patients, including humans and other mammals. For oral administration, the pharmaceutical composition may be in the form of, for example, a capsule, a tablet, a suspension, or liquid. The pharmaceutical composition is preferably made in the form of a dosage unit containing a given amount of the active ingredient. For example, these may contain an amount of active ingredient from about 1 to 2000 mg, preferably from about 1 to 500 mg, more preferably from about 5 to 150 mg. A suitable daily dose for a human or other mammal may vary widely depending on the condition of the patient and other factors, but, once again, can be determined using routine methods. The active ingredient may also be administered by injection as a composition with suitable carriers including saline, dextrose, or water. The daily parenteral dosage regimen will be from about 0.1 to about 30 mg/kg of total body weight, preferably from about 0.1 to about 10 mg/kg, and more preferably from about 0.25 mg to 1 mg/kg. Injectable preparations, such as sterile injectable aqueous or oleaginous suspensions, may be formulated according to the known are using suitable dispersing or wetting agents and suspending agents. The sterile injectable preparation may also be a sterile injectable solution or suspension in a non-toxic parenterally acceptable diluent or solvent, for example as a solution in 1,3- butanediol. Among the acceptable vehicles and solvents that may be employed are water, Ringer's solution, and isotonic sodium chloride solution. In addition, sterile, fixed oils are conventionally employed as a solvent or suspending medium. For this purpose any bland fixed oil may be employed, including synthetic mono- or diglycerides. In addition, fatty acids such as oleic acid find use in the preparation of injectables. Suppositories for rectal administration of the drug can be prepared by mixing the drug with a suitable non-irritating excipient such as cocoa butter and polyethylene glycols that are solid at ordinary temperatures but liquid at the rectal temperature and will therefore melt in the rectum and release the drug. A suitable topical dose of active ingredient of a compound of the invention is 0.1 mg to 150 mg administered one to four, preferably one or two times daily. For topical administration, the active ingredient may comprise from 0.001% to 10% w/w, e.g., from 1% to 2% by weight of the formulation, although it may comprise as much as 10% w/w, but preferably not more than 5% w/w, and more preferably from 0.1% to 1% of the formulation. Formulations suitable for topical administration include liquid or semi- liquid preparations suitable for penetration through the skin (e.g. , liniments, lotions, ointments, creams, or pastes) and drops suitable for administration to the eye, ear, or nose. For administration, the compounds of this invention are ordinarily combined with one or more adjuvants appropriate for the indicated route of administration. The compounds may be admixed with lactose, sucrose, starch powder, cellulose esters of alkanoic acids, stearic acid, talc, magnesium stearate, magnesium oxide, sodium and calcium salts of phosphoric and sulfuric acids, acacia, gelatin, sodium alginate, polyvinyl-pyrrolidine, and/or polyvinyl alcohol, and tableted or encapsulated for conventional administration. Alternatively, the compounds of this invention may be dissolved in saline, water, polyethylene glycol, propylene glycol, ethanol, com oil, peanut oil, cottonseed oil, sesame oil, tragacanth gum, and/or various buffers. Other adjuvants and modes of administration are well known in the pharmaceutical art. The carrier or diluent may include time delay material, such as glyceryl monostearate or glyceryl distearate alone or with a wax, or other materials well known in the art. The pharmaceutical compositions may be made up in a solid form (including granules, powders or suppositories) or in a liquid form (e.g., solutions, suspensions, or emulsions). The pharmaceutical compositions may be subjected to conventional pharmaceutical operations such as sterilization and/or may contain conventional adjuvants, such as preservatives, stabilizers, wetting agents, emulsifiers, buffers etc. Solid dosage forms for oral administration may include capsules, tablets, pills, powders, and granules. In such solid dosage forms, the active compound may be admixed with at least one inert diluent such as sucrose, lactose, or starch. Such dosage forms may also comprise, as in normal practice, additional substances other than inert diluents, e.g., lubricating agents such as magnesium stearate. In the case of capsules, tablets, and pills, the dosage forms may also comprise buffering agents. Tablets and pills can additionally be prepared with enteric coatings. Liquid dosage forms for oral administration may include pharmaceutically acceptable emulsions, solutions, suspensions, syrups, and elixirs containing inert diluents commonly used in the art, such as water. Such compositions may also comprise adjuvants, such as wetting, sweetening, flavoring, and perfuming agents. Compounds of the present invention can possess one or more asymmetric carbon atoms and are thus capable of existing in the form of optical isomers as well as in the form of racemic or non-racemic mixtures thereof. The optical isomers can be obtained by resolution of the racemic mixtures according to conventional processes, e.g., by formation of diastereoisomeric salts, by treatment with an optically active acid or base. Examples of appropriate acids are tartaric, diacetyltartaric, dibenzoyltartaric, ditoluoyltartaric, and camphorsulfonic acid and then separation of the mixture of diastereoisomers by crystallization followed by liberation of the optically active bases from these salts. A different process for separation of optical isomers involves the use of a chiral chromatography column optimally chosen to maximize the separation of the enantiomers. Still another available method involves synthesis of covalent diastereoisomeric molecules by reacting compounds of the invention with an optically pure acid in an activated form or an optically pure isocyanate. The synthesized diastereoisomers can be separated by conventional means such as chromatography, distillation, crystallization or sublimation, and then hydrolyzed to deliver the enantiomerically pure compound. The optically active compounds of the invention can likewise be obtained by using active starting materials. These isomers may be in the form of a free acid, a free base, an ester or a salt. Likewise, the compounds of this invention may exist as isomers, that is compounds of the same molecular formula but in which the atoms, relative to one another, are arranged differently. In particular, the alkylene substituents of the compounds of this invention, are normally and preferably arranged and inserted into the molecules as indicated in the definitions for each of these groups, being read from left to right. However, in certain cases, one skilled in the art will appreciate that it is possible to prepare compounds of this invention in which these substituents are reversed in orientation relative to the other atoms in the molecule. That is, the substituent to be inserted may be the same as that noted above except that it is inserted into the molecule in the reverse orientation. One skilled in the art will appreciate that these isomeric forms of the compounds of this invention are to be construed as encompassed within the scope of the present invention. The compounds of the present invention can be used in the form of salts derived from inorganic or organic acids. The salts include, but are not limited to, the following: acetate, adipate, alginate, citrate, aspartate, benzoate, benzenesulfonate, bisulfate, butyrate, camphorate, camphorsulfonate, digluconate, cyclopentanepropionate, dodecylsulfate, ethanesulfonate, glucoheptanoate, glycerophosphate, hemisulfate, heptanoate, hexanoate, fumarate, hydrochloride, hydrobromide, hydroiodide, 2-hydroxyethanesulfonate, lactate, maleate, methansulfonate, nicotinate, 2-naphthalenesulfonate, oxalate, palmoate, pectinate, persulfate, 2-phenylpropionate, picrate, pivalate, propionate, succinate, tartrate, thiocyanate, tosylate, mesylate, and undecanoate. Also, the basic nitrogen- containing groups can be quatemized with such agents as lower alkyl halides, such as methyl, ethyl, propyl, and butyl chloride, bromides and iodides; dialkyl sulfates like dimethyl, diethyl, dibutyl, and diamyl sulfates, long chain halides such as decyl, lauryl, myristyl and stearyl chlorides, bromides and iodides, aralkyl halides like benzyl and phenethyl bromides, and others. Water or oil-soluble or dispersible products are thereby obtained. Examples of acids that may be employed to from pharmaceutically acceptable acid addition salts include such inorganic acids as hydrochloric acid, sulfuric acid and phosphoric acid and such organic acids as oxalic acid, maleic acid, succinic acid and citric acid. Other examples include salts with alkali metals or alkaline earth metals, such as sodium, potassium, calcium or magnesium or with organic bases. Also encompassed in the scope of the present invention are pharmaceutically acceptable esters of a carboxylic acid or hydroxyl containing group, including a metabolically labile ester or a prodrug form of a compound of this invention. A metabolically labile ester is one which may produce, for example, an increase in blood levels and prolong the efficacy of the corresponding non-esterified form of the compound. A prodrug form is one which is not in an active form of the molecule as administered but which becomes therapeutically active after some in vivo activity or biotransformation, such as metabolism, for example, enzymatic or hydrolytic cleavage. For a general discussion of prodrugs involving esters see Svensson and Tunek Drug Metabolism Reviews 165 (1988) and Bundgaard Design of Prodrugs, Elsevier (1985). Examples of a masked carboxylate anion include a variety of esters, such as alkyl (for example, methyl, ethyl), cycloalkyl (for example, cyclohexyl), aralkyl (for example, benzyl, p- methoxybenzyl), and alkylcarbonyloxyalkyl (for example, pivaloyloxymethyl).
Amines have been masked as arylcarbonyloxymethyl substituted derivatives which are cleaved by esterases in vivo releasing the free drug and formaldehyde (Bungaard J. Med. Chem. 2503 (1989)). Also, drugs containing an acidic NH group, such as imidazole, imide, indole and the like, have been masked with N- acyloxymethyl groups (Bundgaard Design of Prodrugs, Elsevier (1985)). Hydroxy groups have been masked as esters and ethers. EP 039,051 (Sloan and Little, 4/11/81) discloses Mannich-base hydroxamic acid prodrugs, their preparation and use. Esters of a compound of this invention, may include, for example, the methyl, ethyl, propyl, and butyl esters, as well as other suitable esters formed between an acidic moiety and a hydroxyl containing moiety. Metabolically labile esters, may include, for example, methoxymethyl, ethoxymethyl, iso-propoxymethyl, -methoxyethyl, groups such as α-
((Cι-C4)alkyloxy)ethyl, for example, methoxyethyl, ethoxyethyl, propoxyethyl, iso-propoxyethyl, etc.; 2-oxo-l,3-dioxolen-4-ylmethyl groups, such as 5-methyl- 2-oxo-l, 3, dioxolen-4-ylmethyl, etc.; C C3 alkylthiomethyl groups, for example, methylthiomethyl, ethylthiomethyl, isopropylthiomethyl, etc.; acyloxymethyl groups, for example, pivaloyloxymethyl, α-acetoxymethyl, etc.; ethoxycarbonyl- 1-methyl; or α-acyloxy-α-substituted methyl groups, for example α-acetoxyethyl. Further, the compounds of the invention may exist as crystalline solids which can be crystallized from common solvents such as ethanol, N,N-dimethyl- formamide, water, or the like. Thus, crystalline forms of the compounds of the invention may exist as polymorphs, solvates and/or hydrates of the parent compounds or their pharmaceutically acceptable salts. All of such forms likewise are to be construed as falling within the scope of the invention. While the compounds of the invention can be administered as the sole active pharmaceutical agent, they can also be used in combination with one or more compounds of the invention or other agents. When administered as a combination, the therapeutic agents can be formulated as separate compositions that are given at the same time or different times, or the therapeutic agents can be given as a single composition. The foregoing is merely illustrative of the invention and is not intended to limit the invention to the disclosed compounds. Nariations and changes, which are obvious to one skilled in the art, are intended to be within the scope and nature of the invention, which are defined, in the appended claims. From the foregoing description, one skilled in the art can easily ascertain the essential characteristics of this invention, and without departing from the spirit and scope thereof, can make various changes and modifications of the invention to adapt it to various usages and conditions.

Claims

We Claim:
1. A compound having the structure:
Figure imgf000047_0001
or any pharmaceutically-acceptable salt or hydrate thereof, wherein: J is =O, =S, =CHNO2, =N-CN, =CHSO2Rb, =NSO2Rb or =NRb; R1 is a saturated, partially saturated or unsaturated 9-, 10- or 11-membered bicyclic ring containing 0, 1, 2, 3 or 4 atoms selected from N, O and S, wherein the number of O and S atoms in the ring is not greater than 2, wherein the carbon atoms of the ring are substituted by 0, 1 or 2 oxo groups, and wherein the bicyclic ring is substituted by 1, 2 or 3 substituents selected from Re, Rg, Cι-4haloalkyl, halo, cyano, nitro, -C(=O)Rb, -C(=O)ORb, -C(=O)NRaRa, -C(=NRa)NRaRa, -OR1, -OC(=O)Rb, -OC(=O)NRaRa, -OC(=O)N(Ra)S(=O)2Rb, -OC2-6alkylNRaRa, -OC2-6alkylORa, -SRa, -S(=O)Rb, -S(=O)2Rb, -S(=O)2NRaRa,
-S(=O)2N(Ra)C(=O)Rb, -S(=O)2N(Ra)C(=O)ORb, -S(=O)2N(Ra)C(=0)NRaRa, -NRaRa, -N(Ra)C(=O)R , -N(Ra)C(=O)OR , -N(Ra)C(=O)NRaRa, -N(Ra)C(=NRa)NRaRa, -N(Ra)S(=O)2Rb, -N(Ra)S(=O)2NRaRa, -NRaC2_6alkylNRaRa or -NRaC2-6alkylORa; with the proviso that bicyclic ring is not thieno[2,3-b]pyridin-2-yl; R2 is a saturated, partially saturated or unsaturated 9- or 10-membered bicyclic ring containing 0, 1, 2 or 3 N atoms and 0, 1, 2 atoms selected from O and S, and the bicyclic ring contains at least one N, O or S atom, and when the bicyclic ring is a 10-membered bicyclic ring then the ring containing the connecting atom where R2 is attached to the general structure must have at least one N atom, and wherein the ring is substituted by 0, 1 or 2 oxo groups; wherein the bicyclic ring is substituted by 0, 1, 2 or 3 substituents selected from Re, Cι-4haloalkyl, halo, cyano, nitro, -C(=O)R , -C(=O)ORb, -C(=O)NRaRa, -C(=NRa)NRaRa, -ORa, -OC(=O)Rb, -OC(=O)NRaRa, -OC(=O)N(Ra)S(=O)2Rb, -OC2-6alkylNRaRa, -OC2-6alkylORa, -SRa, -S(=O)Rb, -S(=O)2Rb, -S(=0)2NRaRa,
-S(=O)2N(Ra)C(=O)Rb, -S(=O)2N(Ra)C(=O)ORb, -S(=O)2N(Ra)C(=O)NRaRa, -NRaRa, -N(Ra)C(=O)Rb, -N(Ra)C(=O)OR , -N(Ra)C(=O)NRaRa, -N(Ra)C(=NRa)NRaRa, -N(Ra)S(=O)2Rb, -N(Ra)S(=O)2NRaRa, -NRaC2-6alkylNRaRa or -NRaC2-6alkylORa; or R2 is a saturated or partially saturated 9- or 10-membered bicyclic carbocyclic ring substituted by 0, 1 or 2 oxo groups and substituted by 1, 2 or 3 substituents selected from Re, Cι-4haloalkyl, halo, cyano, nitro, -C(=O)Rb, -C(=O)ORb, -C(=O)NRaRa, -C(=NRa)NRaRa, -ORa, -OC(=O)Rb, -OC(=O)NRaRa, -OC(=O)N(Ra)S(=O)2R , -OC2-6alkylNRaRa, -OC2-6alkylORa, -SRa, -S(=O)Rb, -S(=O)2Rb, -S(=O)2NRaRa, -S(=O)2N(Ra)C(=O)R , -S(=O)2N(Ra)C(=O)ORb, -S(=O)2N(Ra)C(=O)NRaRa, -NRaRa, -N(Ra)C(=O)Rb, -N(Ra)C(=O)ORb, -N(Ra)C(=O)NRaRa, -N(Ra)C(=NRa)NRaRa, -N(Ra)S(=O)2Rb, -N(Ra)S(=O)2NRaRa, -NRaC2-6alkylNRaRa or -NRaC2-6alkylORa; Ra is independently, at each instance, H or Rb; Rb is independently, at each instance, phenyl, benzyl or Chalky!, the phenyl, benzyl and Cι-6alkyl being substituted by 0, 1, 2 or 3 substituents selected from halo, Cι-4alkyl, Cι-3haloalkyl, -OCι-4alkyl, -NH , -NHCι-4alkyl, -N(Cι-4alkyl)Cι-4alkyl; Rd is independently at each instance C1-8alkyl, C1- haloalkyl, halo, cyano, nitro, -C(=O)Rb, -C(=O)ORb, -C(=O)NRaRa, -C(=NRa)NRaRa, -ORa, -OC(=O)Rb, -OC(=O)NRaRa, -OC(=O)N(Ra)S(=O)2Rb, -OC2-6alkylNRaRa, -OC2-6alkylORa, -SRa, -S(=O)Rb, -S(=O)2Rb, -S(=O)2NRaRa, -S(=O)2N(Ra)C(=O)R , -S(=O)2N(Ra)C(=O)ORb, -S(=O)2N(Ra)C(=O)NRaRa, -NRaRa, -N(Ra)C(=O)Rb, -N(Ra)C(=O)ORb, -N(Ra)C(=O)NRaRa, -N(Ra)C(=NRa)NRaRa, -N(Ra)S(=O)2R , -N(Ra)S(=O)2NRaRa, -NRaC2-6alkylNRaRa or -NRaC2-6alkylORa; Re is independently at each instance Cι-6alkyl substituted by 0, 1, 2 or 3 substituents independently selected from Rd and additionally substituted by 0 or 1 substituents selected from Rg; Rg is independently at each instance a saturated, partially saturated or unsaturated 5-, 6- or 7-membered monocyclic or 6-, 7-, 8-, 9-, 10- or 11 -membered bicyclic ring containing 0, 1, 2, 3 or 4 atoms selected from N, O and S, wherein the carbon atoms of the ring are substituted by 0, 1 or 2 oxo groups and the ring is substituted by 0, 1, 2 or 3 substituents selected from Cι-8alkyl, C1-4haloalkyl, halo, cyano, nitro, -C(=O)R , -C(=O)ORb, -C(=O)NRaRa, -C(=NRa)NRaRa, -ORa, -OC(=O)R , -OC(=O)NRaRa, -OC(=O)N(Ra)S(=O)2Rb, -OC2-6alkylNRaRa, -OC2-6alkylORa, -SRa, -S(=O)Rb, -S(=O)2Rb, -S(=O)2NRaRa, -S(=O)2N(Ra)C(=O)R , -S(=O)2N(Ra)C(=O)ORb, -S(=O)2N(Ra)C(=O)NRaRa, -NRaRa, -N(Ra)C(=O)Rb, -N(Ra)C(=O)OR , -N(Ra)C(=O)NRaRa, -N(Ra)C(=NRa)NRaRa, -N(Ra)S(=O)2Rb, -N(Ra)S(=O)2NRaRa, -NRaC2-6alkylNRaRa and -NRaC2-6alkylORa; and R1 is benzyl, C2-6alkyl, the benzyl and C2-6alkyl being substituted by 0, 1, 2 or 3 substituents selected from halo, C1-4alkyl, Cι-3haloalkyl, -OC1-4alkyl, -NH2, -NHC1- alkyl, -N(Cι-4alkyl)C1-4alkyl; or R1 is methyl substituted by 1, 2 or 3 substituents selected from halo, C1-4alkyl, Cι-3haloalkyl, -OC1-4alkyl, -NH2, -NHCι-4alkyl, -N(Cι-4alkyl)Cι-4alkyl; or R1 is a saturated, partially saturated or unsaturated 5-, 6- or 7-membered ring containing 0, 1, 2, 3 or 4 atoms selected from N, O and S, wherein the carbon atoms of the ring are substituted by 0, 1 or 2 oxo groups and the ring is substituted by 0, 1, 2 or 3 substituents selected from
Cι-8alkyl, Cι-4haloalkyl, halo, cyano, nitro, -C(=O)Rb, -C(=O)OR , -C(=O)NRaRa, -C(=NRa)NRaR\ -ORa, -OC(=O)Rb, -OC(=O)NRaRa, -OC(=O)N(Ra)S(=O)2Rb, -OC2-6alkylNRaRa, -OC2-6alkylORa, -SRa, -S(=O)Rb, -S(=O)2Rb, -S(=O)2NRaRa, -S(=O)2N(Ra)C(=O)Rb, -S(=O)2N(Ra)C(=O)ORb, -S(=O)2N(Ra)C(=O)NRaRa, -NRaRa, -N(Ra)C(=O)Rb, -N(Ra)C(=O)ORb, -N(Ra)C(=O)NRaRa, -N(Ra)C(=NRa)NRaRa, -N(Ra)S(=O)2R , -N(Ra)S(=O)2NRaRa, -NRaC2-6alkylNRaRa and -NRaC2-6alkylORa.
2. A compound according to Claim 1, wherein R1 is a saturated, partially saturated or unsaturated 9-, 10- or 11-membered bicyclic ring containing
0, 1, 2, 3 or 4 atoms selected from N and O, wherein the number of O atoms in the ring is not greater than 2, wherein the carbon atoms of the ring are substituted by 0, 1 or 2 oxo groups, and wherein the bicyclic ring is substituted by 1, 2 or 3 substituents selected from Re, R , Cι-4haloalkyl, halo, cyano, nitro, -C(=O)R , -C(=O)ORb, -C(=O)NRaRa, -C(=NRa)NRaRa, -OR1, -OC(=O)Rb, -OC(=O)NRaRa,
-OC(=O)N(Ra)S(=O)2Rb, -OC2-6alkylNRaRa, -OC2-6alkylORa, -SRa, -S(=O)Rb, -S(=O)2Rb, -S(=O)2NRaRa, -S(=O)2N(Ra)C(=O)R , -S(=O)2N(Ra)C(=O)ORb, -S(=O)2N(Ra)C(=O)NRaRa, -NRaRa, -N(Ra)C(=O)Rb, -N(Ra)C(=O)ORb, -N(Ra)C(=O)NRaRa, -N(Ra)C(=NRa)NRaRa, -N(Ra)S(=O)2Rb, -N(Ra)S(=O)2NRaRa, -NRaC2-6alkylNRaRa or -NRaC2-6alkylORa. 3. A compound according to Claim 1, wherein R1 is a saturated, partially saturated or unsaturated 9-, 10- or 11-membered bicyclic ring containing 1, 2,
3 or 4 atoms selected from N and O, wherein the number of O atoms in the ring is not greater than 2, wherein the carbon atoms of the ring are substituted by 0, 1 or 2 oxo groups, and wherein the bicyclic ring is substituted by 1, 2 or 3 substituents selected from Re, Rg, C1-4haloalkyl, halo, cyano, nitro, -C(=O)Rb,
-C(=O)OR , -C(=O)NRaRa, -C(=NRa)NRaRa, -OR1, -OC(=O)Rb, -OC(=O)NRaRa, -OC(=O)N(Ra)S(=O)2Rb, -OC2-6alkylNRaRa, -OC2-6alkylORa, -SRa, -S(=O)Rb, -S(=O)2Rb, -S(=O)2NRaRa, -S(=O)2N(Ra)C(=O)Rb, -S(=O)2N(Ra)C(=0)ORb, -S(=O)2N(Ra)C(=O)NRaRa, -NRaRa, -N(Ra)C(=O)Rb, -N(Ra)C(=O)ORb, -N(Ra)C(=O)NRaRa, -N(Ra)C(=NRa)NRaRa, -N(Ra)S(=O)2Rb, -N(Ra)S(=O)2NRaRa, -NRaC2-6alkylNRaRa or -NRaC2-6alkylORa.
4. A compound according to Claim 1, wherein R1 is a saturated, partially saturated or unsaturated 9-, 10- or 11-membered bicyclic ring containing 1, 2 or 3 N atoms, wherein the carbon atoms of the ring are substituted by 0, 1 or 2 oxo groups, and wherein the bicyclic ring is substituted by 1, 2 or 3 substituents selected from Re, Rg, Cι-4haloalkyl, halo, cyano, nitro, -C(=O)Rb, -C(=0)ORb, -C(=O)NRaRa, -C(=NRa)NRaRa, -OR1, -OC(=O)Rb, -OC(=O)NRaRa, -OC(=O)N(Ra)S(=O)2Rb, -OC2-6alkylNRaRa, -OC2-6alkylORa, -SRa, -S(=O)Rb, -S(=O)2Rb, -S(=O)2NRaRa, -S(=O)2N(Ra)C(=O)Rb, -S(=O)2N(Ra)C(=O)OR ,
-S(=O)2N(Ra)C(=O)NRaRa, -NRaRa, -N(Ra)C(=O)Rb, -N(Ra)C(=O)ORb, -N(Ra)C(=O)NRaRa, -N(Ra)C(=NRa)NRaRa, -N(Ra)S(=O)2Rb, -N(Ra)S(=O)2NRaRa, -NRaC2-6alkylNRaRa or -NRaC2-6alkylORa.
5. A compound according to Claim 1, wherein R1 is naphthyl substituted by 1, 2 or 3 substituents selected from Re, Rg, C1-4haloalkyl, halo, cyano, nitro, -C(=O)Rb, -C(=O)ORb, -C(=O)NRaRa, -C(=NRa)NRaRa, -OR1, -OC(=O)Rb, -OC(=O)NRaRa, -OC(=O)N(Ra)S(=O)2Rb, -OC2-6alkylNRaRa, -OC2-6alkylORa, -SRa, -S(=O)Rb, -S(=O)2Rb, -S(=O)2NRaRa, -S(=O)2N(Ra)C(=O)Rb, -S(=O)2N(Ra)C(=O)ORb, -S(=O)2N(Ra)C(=O)NRaRa, -NRaRa, -N(Ra)C(=O)Rb, -N(Ra)C(=O)ORb, -N(Ra)C(=O)NRaRa, -N(Ra)C(=NRa)NRaRa, -N(Ra)S(=O)2Rb, -N(Ra)S(=O)2NRaRa, -NRaC2.6alkylNRaRa or -NRaC2-6alkylORa.
6. A compound according to Claim 1, wherein R1 is a saturated, partially saturated or unsaturated 9-, 10- or 11-membered bicyclic ring containing 1 atom selected from N, O and S, wherein the carbon atoms of the ring are substituted by 0, 1 or 2 oxo groups, and wherein the bicyclic ring is substituted by 1, 2 or 3 substituents selected from Re, Rg, C1-4haloalkyl, halo, cyano, nitro, -C(=O)Rb, -C(=O)ORb, -C(=O)NRaRa, -C(=NRa)NRaRa, -OR1, -OC(=O)Rb, -OC(=O)NRaRa, -OC(=O)N(Ra)S(=O)2Rb, -OC2-6alkylNRaRa, -OC2-6alkylORa, -SRa, -S(=O)Rb, -S(=O)2Rb, -S(=O)2NRaRa, -S(=O)2N(Ra)C(=O)Rb,
-S(=O)2N(Ra)C(=O)OR , -S(=O)2N(Ra)C(=O)NRaRa, -NRaRa, -N(Ra)C(=O)Rb, -N(Ra)C(=O)OR , -N(Ra)C(=O)NRaRa, -N(Ra)C(=NRa)NRaRa, -N(Ra)S(=O)2R , -N(Ra)S(=O)2NRaRa, -NRaC2-6alkylNRaRa or -NRaC2-6alkylORa.
7. A compound according to Claim 1, wherein R1 is selected from
Figure imgf000051_0001
Figure imgf000051_0003
and
Figure imgf000051_0002
, any of which are substituted by 1, 2 or 3 substituents selected from Re, Rg, Cι-4haloalkyl, halo, cyano, nitro, -C(=O)Rb, -C(=O)ORb, -C(=O)NRaRa, -C(=NRa)NRaRa, -OR1, -OC(=O)R , -OC(=O)NRaRa, -OC(=O)N(Ra)S(=O)2Rb, -OC2-6alkylNRaRa, -OC2-6alkylORa, -SRa, -S(=O)Rb, -S(=O)2R , -S(=O)2NRaRa,
Figure imgf000052_0001
-NRaRa, -N(Ra)C(=O)Rb, -N(Ra)C(=O)ORb, -N(Ra)C(=O)NRaRa, -N(Ra)C(=NRa)NRaRa, -N(Ra)S(=O)2Rb, -N(Ra)S(=O)2NRaRa, -NRaC2-6alkylNRaRa or -NRaC2-6alkylORa; X is independently in each instance N or C; and Y is independently in each instance C, N, O or S.
8. A compound according to Claim 1, wherein R s
Figure imgf000052_0002
both of which are substituted by 1, 2 or 3 substituents selected from Re, Rg, Cι_4haloalkyl, halo, cyano, nitro, -C(=O)Rb, -C(=O)ORb, -C(=O)NRaRa, -C(=NRa)NRaRa, -OR1, -OC(=O)Rb, -OC(=O)NRaRa, -OC(=O)N(Ra)S(=O)2R , -OC2-6alkylNRaRa, -OC2-6alkylORa, -SRa, -S(=O)Rb, -S(=O)2Rb, -S(=0)2NRaRa, -S (=O)2N(Ra)C(=O)Rb, -S(=O)2N(Ra)C(=O)ORb, -S(=O)2N(Ra)C(=O)NRaRa, -NRaRa, -N(Ra)C(=O)Rb, -N(Ra)C(=O)ORb, -N(Ra)C(=O)NRaRa, -N(Ra)C(=NRa)NRaRa, -N(Ra)S(=O)2Rb, -N(Ra)S(=O)2NRaRa, -NRaC2-6alkylNRaRa or -NRaC2-6alkylORa; and X is independently in each instance N or C.
9. A compound according to Claim 1, wherein R1 is selected from
Figure imgf000052_0003
γ X , any of which are substituted by 1, 2 or 3 substituents selected Re, Rg, Cι-4haloalkyl, halo, cyano, nitro, -C(=O)Rb, -C(=O)ORb, -C(=O)NRaRa, -C(=NRa)NRaRa, -OR1, -OC(=O)Rb, -OC(=O)NRaRa, -OC(=O)N(Ra)S(=O)2Rb, -OC2-6alkylNRaRa, -OC2-6alkylORa, -SRa, -S(=O)R , -S(=O)2Rb, -S(=O)2NRaRa, -S(=O)2N(Ra)C(=O)Rb, -S(=O)2N(Ra)C(=O)ORb, -S(=O)2N(Ra)C(=O)NRaRa, -NRaRa, -N(Ra)C(=O)Rb, -N(Ra)C(=O)ORb, -N(Ra)C(=O)NRaRa, -N(Ra)C(=NRa)NRaRa, -N(Ra)S(=O)2R , -N(Ra)S(=O)2NRaRa, -NRaC2-6alkylNRaRa or -NRaC2-6alkylORa; X is independently in each instance N or C; and Y is independently in each instance C, N, O or S.
10. A compound according to any one of Claims 1-9, wherein R2 is a saturated, partially saturated or unsaturated 9-membered bicyclic ring containing 0, 1, 2 or 3 N atoms and 0, 1 or 2 atoms selected from O and S, and the bicyclic ring contains at least one N, O or S atom, and wherein the ring is substituted by 0, 1 or 2 oxo groups; wherein the bicyclic ring is substituted by 0, 1, 2 or 3 substituents selected from Re, C1-4haloalkyl, halo, cyano, nitro, -C(=O)Rb,
-C(=O)OR , -C(=O)NRaRa, -C(=NRa)NRaRa, -ORa, -OC(=O)R , -OC(=O)NRaRa, -OC(=O)N(Ra)S(=O)2Rb, -OC2-6alkylNRaRa, -OC2-6alkylORa, -SRa, -S(=O)Rb, -S(=O)2Rb, -S(=O)2NRaRa, -S(=O)2N(Ra)C(=O)Rb, -S(=O)2N(Ra)C(=O)ORb, -S(=O)2N(Ra)C(=O)NRaRa, -NRaRa, -N(Ra)C(=O)R , -N(Ra)C(=O)ORb, -N(Ra)C(=O)NRaRa, -N(Ra)C(=NRa)NRaRa, -N(Ra)S(=O)2Rb,
-N(Ra)S(=O)2NRaRa, -NRaC2-6alkylNRaRa or -NRaC2-6alkylORa.
11. A compound according to any one of Claims 1-9, wherein R2 is a saturated, partially saturated or unsaturated 10-membered bicyclic ring containing 1, 2 or 3 N atoms and 0, 1 or 2 atoms selected from O and S, and the bicyclic ring contains at least one N, O or S atom, wherein the ring containing the connecting atom where R2 is attached to the general structure must have at least one N atom, and wherein the ring is substituted by 0, 1 or 2 oxo groups; wherein the bicyclic ring is substituted by 0, 1, 2 or 3 substituents selected from Re, Cι-4haloalkyl, halo, cyano, nitro, -C(=O)Rb, -C(=O)ORb, -C(=O)NRaRa, -C(=NRa)NRaRa, -ORa,
-OC(=O)Rb, -OC(=O)NRaRa, -OC(=O)N(Ra)S(=O)2Rb, -OC2-6alkylNRaRa, -OC2.6alkylORa, -SRa, -S(=O)R , -S(=O)2Rb, -S(=O)2NRaRa,
Figure imgf000054_0001
-NRaRa, -N(Ra)C(=O)Rb, -N(Ra)C(=O)OR , -N(Ra)C(=O)NRaRa, -N(Ra)C(=NRa)NRaRa, -N(Ra)S(=O)2Rb, -N(Ra)S(=O)2NRaRa, -NRaC2-6alkylNRaRa or -NRaC2-6alkylORa.
12. A compound according to any one of Claims 1-9, wherein R2 is a saturated or partially saturated 9- or 10-membered bicyclic carbocyclic ring substituted by 0, 1 or 2 oxo groups and substituted by 1, 2 or 3 substituents selected from Re, Cι-4haloalkyl, halo, cyano, nitro, -C(=O)Rb, -C(=O)ORb, -C(=O)NRaRa, -C(=NRa)NRaRa, -ORa, -OC(=O)Rb, -OC(=O)NRaRa,
-OC(=O)N(Ra)S(=O)2Rb, -OC2-6alkylNRaRa, -OC2-6alkylORa, -SRa, -S(=O)Rb, -S(=O)2Rb, -S(=O)2NRaRa, -S(=O)2N(Ra)C(=O)R , -S(=O)2N(Ra)C(=O)ORb, -S(=O)2N(Ra)C(=O)NRaRa, -NRaRa, -N(Ra)C(=O)Rb, -N(Ra)C(=O)ORb, -N(Ra)C(=O)NRaRa, -N(Ra)C(=NRa)NRaRa, -N(Ra)S(=O)2Rb, -N(Ra)S(=O)2NRaRa, -NRaC2-6alkylNRaRa or -NRaC2-6alkylORa.
13. A compound according to any one of Claims 1-9, wherein R 2 i . s bicyclic ring selected from
Figure imgf000054_0002
Figure imgf000055_0001
wherein = represents a single or double bond; and wherein the bicyclic ring is substituted by 0, 1, 2 or 3 substituents selected from C1-8alkyl, Cι-4haloalkyl, halo, cyano, nitro, -C(=O)R , -C(=O)ORb, -C(=O)NRaRa, -C(=NRa)NRaRa, -ORa, -OC(=O)R , -OC(=O)NRaRa, -OC(=O)N(Ra)S(=O)2Rb, -OC2-6alkylNRaRa, -OC2-6alkylORa, -SRa, -S(=O)Rb, -S(=O)2Rb, -S(=O)2NRaRa,
-S(=O)2N(Ra)C(=O)Rb, -S(=O)2N(Ra)C(=O)ORb, -S(=O)2N(Ra)C(=O)NRaRa, -NRaRa, -N(Ra)C(=O)R , -N(Ra)C(=O)ORb, -N(Ra)C(=O)NRaRa, -N(Ra)C(=NRa)NRaRa, -N(Ra)S(=O)2R , -N(Ra)S(=O)2NRaRa, -NRaC2-6alkylNRaRa or -NRaC2-6alkylORa; X is independently in each instance N or C; and Y is independently in each instance C, N, O or S.
14. A compound according to any one of Claims 1-9, wherein R2 is bicyclic ring selected from
Figure imgf000055_0002
Figure imgf000056_0001
wherein == represents a single or double bond; and wherein the bicyclic ring is substituted by 0, 1, 2 or 3 substituents selected from Cι-8alkyl, C1-4haloalkyl, halo, cyano, nitro, -C(=O)Rb, -C(=O)ORb, -C(=O)NRaRa, -C(=NRa)NRaRa, -ORa, -OC(=O)Rb, -OC(=O)NRaRa, -OC(=O)N(Ra)S(=O)2Rb, -OC2-6alkylNRaRa, -OC2-6alkylORa, -SRa, -S(=O)Rb, -S(=O)2Rb, -S(=O)2NRaRa, -S(=O)2N(Ra)C(=O)Rb, -S(=O)2N(Ra)C(=O)ORb, -S(=O)2N(Ra)C(=O)NRaRa, -NRaRa, -N(Ra)C(=O)Rb, -N(Ra)C(=O)OR , -N(Ra)C(=O)NRaRa, -N(Ra)C(=NRa)NRaRa, -N(Ra)S(=O)2Rb, -N(Ra)S(=O)2NRaRa, -NRaC2-6alkylNRaRa or -NRaC2-6alkylORa; X is independently in each instance N or C; and Y is independently in each instance C, N, O or S.
15. A compound according to any one of Claims 1-9, wherein R2 is bicyclic ring selected from
Figure imgf000056_0002
wherein =r= represents a single or double bond; and wherein the bicyclic ring is substituted by 0, 1, 2 or 3 substituents selected from Cι-8alkyl, C1-4haloalkyl, halo, cyano, nitro, -C(=O)R , -C(=O)ORb, -C(=O)NRaRa, -C(=NRa)NRaRa, -ORa, -OC(=O)Rb, -OC(=O)NRaRa, -OC(=O)N(Ra)S(=O)2R , -OC2-6alkylNRaRa, -OC2-6alkylORa, -SRa, -S(=O)Rb, -S(=O)2Rb, -S(=O)2NRaRa, -S(=O)2N(Ra)C(=O)Rb, -S(=O)2N(Ra)C(=O)ORb, -S(=O)2N(Ra)C(=O)NRaRa, -NRaRa, -N(Ra)C(=O)Rb, -N(Ra)C(=O)ORb, -N(Ra)C(=O)NRaRa, -N(Ra)C(=NRa)NRaRa, -N(Ra)S(=O)2Rb, -N(Ra)S(=O)2NRaRa,
-NRaC2-6alkylNRaRa or -NRaC2.6alkylORa; X is independently in each instance N or C; and Y is independently in each instance C, N, O or S.
16. A compound according to any one of Claims 1-9, wherein R is bicyclic ring selected from
Figure imgf000057_0001
wherein ==. represents a single or double bond; and wherein the bicyclic ring is substituted by 0, 1, 2 or 3 substituents selected from Cι-8alkyl, C1-4haloalkyl, halo, cyano, nitro, -C(=O)Rb, -C(=O)ORb, -C(=O)NRaRa, -C(=NRa)NRaRa, -ORa, -OC(=O)Rb, -OC(=O)NRaRa, -OC(=O)N(Ra)S(=O)2Rb, -OC2-6alkylNRaRa, -OC2-6alkylORa, -SRa, -S(=O)Rb, -S(=O)2Rb, -S(=O)2NRaRa, -S(=O)2N(Ra)C(=O)Rb, -S(=O)2N(Ra)C(=O)ORb, -S(=O)2N(Ra)C(=O)NRaRa, -NRaRa, -N(Ra)C(=O)Rb, -N(Ra)C(=O)ORb, -N(Ra)C(=O)NRaRa, -N(Ra)C(=NRa)NRaRa, -N(Ra)S(=O)2R , -N(Ra)S(=O)2NRaRa, -NRaC2-6alkylNRaRa or -NRaC2-6alkylORa; X is independently in each instance N or C; and Y is independently in each instance C, N, O or S.
17. A compound according to Claim 1 selected from the group of: (3S)-7-tert-butyl-l,2,3,4-tetrahydro-isoquinoline-3-carboxylic acid (2,3-dihydro- benzo [1,4] dioxin-6-yl)-amide ; 4-chloro-N-(2,3-dihydro-l,4-benzodioxin-6-yl)-7-(trifluoromethyl)-3- quinolinecarboxamide;
6-bromo-N-(lH-indol-7-yl)-2-naphthalenecarboxamide;
6-bromo-N-(2-(hydroxymethyl)-2,3-dihydro-l,4-benzodioxin-6-yl)-2- naphthalenecarboxamide;
6-bromo-N-(2,3-dihydro-l,4-benzodioxin-6-yl)-2-naphthalenecarboxamide; 6-bromo-N-(3-quinolinyl)-2-naphthalenecarboxamide;
N-(lH-benzimidazol-5-yl)-6-bromo-2-naphthalenecarboxamide;
N-(2-(acetylamino)-l,3-benzothiazol-4-yl)-l-(l-methylethyl)-2-(trifluoromethyl)- lH-benzimidazole-5-carboxamide;
N-(2-(acetylamino)-l,3-benzothiazol-4-yl)-6-(trifluoromethyl)-l-benzothiophene- 2-carboxamide;
N-(2-(acetylamino)-l,3-benzothiazol-4-yl)-6-bromo-2-naphthalenecarboxamide;
N-(2,3-dihydro-l,4-benzodioxin-6-yl)-2-(l,l-dimethylethyl)-l,3-dioxo-2,3- dihydro-lH-isoindole-5-carboxamide;
N-(2,3-dihydro-l,4-benzodioxin-6-yl)-6-(trifluoromethyl)thieno[3,2-b]pyridine-2- carboxamide;
N-(2,3-dihydro-l,4-benzodioxin-6-yl)-7-(l,l-dimethylethyl)-3- isoquinolinecarboxamide; and
N-(2-amino-l,3-benzothiazol-4-yl)-6-bromo-2-naphthalenecarboxamide; or any pharmaceutically-acceptable salts or hydrates thereof.
18. The use of a compound according to any of Claims 1-17 in the manufacture of a medicament for the treatment of acute, inflammatory and neuropathic pain, dental pain, general headache, migraine, cluster headache, mixed- vascular and non-vascular syndromes, tension headache, general inflammation, arthritis, rheumatic diseases, osteoarthritis, inflammatory bowel disorders, anxiety, depression, inflammatory eye disorders, inflammatory or unstable bladder disorders, psoriasis, skin complaints with inflammatory components, chronic inflammatory conditions, inflammatory pain and associated hyperalgesia and allodynia, neuropathic pain and associated hyperalgesia and allodynia, diabetic neuropathy pain, causalgia, sympathetically maintained pain, deafferentation syndromes, asthma, epithelial tissue damage or dysfunction, herpes simplex, disturbances of visceral motility at respiratory, genitourinary, gastrointestinal or vascular regions, wounds, bums, allergic skin reactions, pruritus, vitiligo, general gastrointestinal disorders, gastric ulceration, duodenal ulcers, diarrhea, gastric lesions induced by necrotising agents, hair growth, vasomotor or allergic rhinitis, bronchial disorders or bladder disorders.
19. A pharmaceutical composition comprising a compound according to any one of Claims 1-17 and a pharmaceutically-acceptable diluent or carrier.
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