Classifications

• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D211/00—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings
  • C07D211/04—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
  • C07D211/06—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members
  • C07D211/36—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
  • C07D211/60—Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K31/00—Medicinal preparations containing organic active ingredients
  • A61K31/33—Heterocyclic compounds
  • A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
  • A61K31/435—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom
  • A61K31/44—Non condensed pyridines; Hydrogenated derivatives thereof
  • A61K31/445—Non condensed piperidines, e.g. piperocaine
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P7/00—Drugs for disorders of the blood or the extracellular fluid
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P7/00—Drugs for disorders of the blood or the extracellular fluid
  • A61P7/02—Antithrombotic agents; Anticoagulants; Platelet aggregation inhibitors

Definitions

• the present invention relates to ⁇ -alanme derivative. More particularly, it relates to ⁇ -alanme derivative which is glycoprotem Ilb/IIIa antagonist, inhibitor of blood platelets aggregation and inhibitor of the binding of fibnnogen to blood platelets.
• the present invention relates to ⁇ -alanme derivative. More particularly, it relates to ⁇ -alanme derivative which is glycoprotem Ilb/IIIa antagonist and inhibitor of platelet aggregation, and useful as : a drug for the prevention and/or the treatment of diseases caused by thrombus formation such as arterial thrombosis; arterial sclerosis; ischemic heart diseases [e.g. angina pectoris (e.g. stable angina pectoris, unstable angina pectoris including imminent infarction, etc.), myocardial infarction (e.g. acute myocardial infarction, etc.), coronary thrombosis, etc.] ; ischemic brain diseases [e.g. cerebral infarction ⁇ e.g.
• cereoral thrombosis e.g. acute cerebral thrombosis, etc.
• cerebral embolism etc. ⁇
• transient cerebral ischemia e.g. transient ischemic attack, etc.
• cerebrovascular spasm after cerebral hemorrhage e.g. cerebrovascular spasm after subarachnoid hemorrhage, etc.
• pulmonary vascular diseases e.g. pulmonary thrombosis, pulmonary embolism etc.
• peripheral circulatory disorder e.g. arteriosclerosis obliterans, thromboangiitis obliterans (i.e. Burger's disease), Raynaud's disease, complication of diabetes mellitus (e.g.
• a drug for the prevention and/or the treatment of restenosis and/or reocclusion such as restenosis and/or reocclusion after percutaneous translummal coronary angioplasty (PTCA) , restenosis and/or reocclusion after the administration of thrombolytic drug (e.g. tissue plas mogen activator (TPA) , etc.) or the like; a drug for the adjuvant therapy with thrombolytic drug (e.g. TPA, etc.) or anticoagulant (e.g. heparin, etc.
• thrombolytic drug e.g. tissue plas mogen activator (TPA) , etc.
• TPA tissue plas mogen activator
• anticoagulant e.g. heparin, etc.
• DIC disseminated intravascular coagulation
• thrombotic thrombocytopenia thrombotic thrombocytopenia
• essential thrombocytosis inflammation
• inflammation e.g. nephritis, etc.
• immune diseases e.g. nephritis, etc.
• the ⁇ -alanine derivative of the present invention is expected to be useful as an inhibitor of cell adhesion and so is expected to be useful as a drug for the prevention and/or the treatment of disseminated intravascular coagulation (DIC) , tnrombotic thrombocytopenia, essential thrombocytosis, inflammation (e.g. nephritis, etc.), immune diseases, or the like; a drug for inhibiting of metastasis; or the like.
• DIC disseminated intravascular coagulation
• tnrombotic thrombocytopenia e.g. tnrombotic thrombocytopenia
• essential thrombocytosis e.g. nephritis, etc.
• inflammation e.g. nephritis, etc.
• immune diseases e.g. nephritis, etc.
• a drug for inhibiting of metastasis e.g. nephritis, etc
• the object compound (I) can be prepared by the following processes.
• R 1 is amino protective group
• Suitable salt of the compounds (II) and (III) are pharmaceutically acceptable salt such as conventional non- toxic salt and include a metal salt such as an alkali metal salt [e.g. sodium salt, potassium salt, etc.] and an alkaline earth metal salt [e.g. calcium salt, magnesium salt, etc.] an ammonium salt, an organic base salt [e.g. tri ethylamine salt, triethylamine salt, pyridine salt, picoline salt dicyclohexylamine salt, N,N- dibenzylethylenediamine salt, etc.], an organic acid addition salt [e.g.
• a metal salt such as an alkali metal salt [e.g. sodium salt, potassium salt, etc.] and an alkaline earth metal salt [e.g. calcium salt, magnesium salt, etc.] an ammonium salt, an organic base salt [e.g. tri ethylamine salt, triethylamine salt, pyridine salt, picoline salt dicyclohexylamine salt
• formate acetate, trifluoroacetate, maleate, tartrate, methanesulfonate, benzenesulfonate, toluenesulfonate, etc.]
• an inorganic acid addition salt e.g. hydrochloride, hydrobromide, hydroiodide, sulfate, phosphate, etc.
• a salt with an amino acid e.g. arginine salt, aspartic acid salt, glutamic acid salt, etc.] and the like.
• Suitable “lower alkyl” may be straight or branched ones such as methyl, ethyl, isopropyl, propyl, butyl, isobutyl, sec-butyl, t-butyl, pentyl, isopentyl, hexyl, isohexyl or the like.
• Suitable “amino protective group” may include acyl group as explained below, a conventional protecting group such as ar (lower) alkyl which may have 1 to 3 suitable substituent (s) (e.g. benzyl, phenethyl, 1-phenylethyl, benzhydryl, trityl, etc.), [5- (lower) alkyl-2-oxo-l,3- dioxol-4-yl] (lower)alkyl [e.g. (5-methyl-2-oxo-l, 3-dioxol- 4-yl)methyl, etc.] or the like; and the like.
• suitable substituent e.g. benzyl, phenethyl, 1-phenylethyl, benzhydryl, trityl, etc.
• [5- (lower) alkyl-2-oxo-l,3- dioxol-4-yl] (lower)alkyl e.g. (5-
• acyl group and “acyl” may include aliphatic acyl, aromatic acyl, arylaliphatic acyl and heterocyclic-aliphatic acyl derived from carboxylic acid, carbonic acid, carbamic acid, sulfonic acid, and the like.
• acyl group may be illustrated as follows :
• aliphatic acyl such as lower or higher alkanoyl (e.g., formyl, acetyl, propanoyl, butanoyl, 2-methylpropanoyl, pentanoyl, 2,2-dimethylpropanoyl, hexanoyl, heptanoyl, octanoyl, nonanoyl, decanoyl, undecanoyl, dodecanoyl, tridecanoyl, tetradecanoyl, pentadecanoyl, hexadecanoyl, heptadecanoyl, octadecanoyl, nonadecanoyl, icosanoyl, etc.); lower or higher alkoxycarbonyl (e.g., methoxycarbonyl, ethoxycarbonyl, t-butoxycarbonyl, t-pentyloxycarbonyl, heptyloxycarbon
• lower or higher alkylsulfonyl e.g., methylsulfonyl, ethylsulfonyl, etc.
• lower or higher alkoxysulfonyl e.g., methoxysulfonyl.
• aromatic acyl such as aroyl (e.g., benzoyl, toluoyl, naphthoyl, etc.); ar (lower) alkanoyl [e.g., phenyl (C ⁇ -Cg) alkanoyl (e.g., phenylacetyl, phenylpropanoyl, phenylbutanoyl, phenylisobutanoyl, phenylpentanoyl, phenylhexanoyl, etc.), naphthyl (C- ⁇ -Cg) alkanoyl (e.g., naphthylacetyl, naphthylpropanoyl, naphthylbutanoyl, etc.), etc.]; ar (lower) alkenoyl [e.g., phenyl (C 3 -Cg) alkenoyl [e.g., phenyl (C 3 -Cg)
• ar (lower) alkoxycarbonyl e.g., phenyl (C- ⁇ -Cg) - alkoxycarbonyl (e.g., benzyloxycarbonyl, etc.), etc.
• aryloxycarbonyl e.g., phenoxycarbonyl, naphthyloxycarbonyl, etc.
• aryloxy(lower) alkanoyl e.g., phenoxyacetyl, phenoxypropionyl, etc.
• arylcarbamoyl e.g., phenylcarbamoyl, etc.
• arylthiocarbamoyl e.g., phenylthiocarbamoyl, etc.
• arylglyoxyloyl e.g., phenylglyoxyloyl, naphthylglyoxyloyl, etc.
• arylsulfonyl which may have 1 to 4 lower alkyl (e.g., phenylsulfonyl, p-tolylsulfonyl, etc.); or the like; heterocyclic acyl such as heterocycliccarbonyl; heterocyclic (lower) alkanoyl (e.g., heterocyclicacetyl, heterocyclicpropanoyl, heterocyclicbutanoyl, heterocyclicpentanoyl, heterocyclichexanoyl, etc.) ; heterocyclic (lower) alkenoyl (e.g., heterocyclicpropenoyl, heterocyclicbutenoyl, heterocyclicpentenoyl, heterocyclichexenoyl, etc.); heterocyclicglyoxyloyl; or the like; and the like.
• heterocyclic acyl such as heterocycliccarbonyl
• heterocyclic (lower) alkanoyl e.g., heterocyclicacet
• heterocyclic moiety in the terms “heterocycliccarbonyl”, “heterocyclic (lower) alkyl”, “heterocyclic (lower) alkenoyl” and “heterocyclicglyoxyloyl” as mentioned above, and “heterocyclic group” mean saturated or unsaturated monocyclic or polycyclic heterocyclic group containing at least one hetero-atom such as an oxygen, sulfur, nitrogen atom and the like, in which the preferable heterocyclic group may be heterocyclic group such as unsaturated 3 to 8-membered (more preferably 5 or 6-membered) heteromonocyclic group containing 1 to 4 nitrogen atom(s), for example, pyrrolyl, pyrrolinyl, imidazolyl, pyrazolyl, pyridyl, dihydropyridyl, pyrimidyl, pyrazinyl, pyridazinyl, triazolyl (e.g., 4H
• the acyl moiety as mentioned above may have one to ten, same or different, suitable substituent (s) such as lower alkyl (e.g., methyl, ethyl, propyl, etc.); lower alkoxy (e.g., methoxy, ethoxy, propoxy, etc.); lower alkylthio (e.g., methylthio, ethylthio, etc.) ; lower alkylamino (e.g., methylamino, ethylamino, propylamino, etc.); cyclo (lower) alkyl [e.g., lower alkyl (e.g., methyl, ethyl, propyl, etc.); lower alkoxy (e.g., methoxy, ethoxy, propoxy, etc.); lower alkylthio (e.g., methylthio, ethylthio, etc.) ; lower alkylamino (e.g.,
• cyclo (C3-C5) alkyl e.g., cyclopentyl, cyclohexyl, etc.]
• cyclo (lower) alkenyl e.g. cyclo (C ⁇ C ) alkenyl (e.g., cyclohexenyl, cyclohexadienyl, etc.); halogen (e.g., fluorine, chlorine, bromine, iodine); amino; amino protective group as mentioned above; hydroxy; protected hydroxy as mentioned below; cyano; nitro; carboxy; protected carboxy; sulfo; sulfamoyl; imino; oxo; amino (lower) alkyl (e.g., aminomethyl, aminoethyl, etc.) ; carbamoyloxy; hydroxy (lower) alkyl (e.g., hydroxymethyl, 1 or 2-hydroxyethyl, 1 or 2 or 3-hydroxypropyl, etc.),
• Suitable "protected hydroxy” may include acyl as mentioned above, phenyl (lower) alkyl which may have one or more suitable substituent (s) (e.g., benzyl, 4-methoxybenzyl, trityl, etc.), trisubstituted silyl [e.g., tri (lower) alkylsilyl (e.g., trimethylsilyl, t-butyldimethylsilyl, etc.), etc.], tetrahydropyranyl and the like.
• suitable substituent e.g., benzyl, 4-methoxybenzyl, trityl, etc.
• trisubstituted silyl e.g., tri (lower) alkylsilyl (e.g., trimethylsilyl, t-butyldimethylsilyl, etc.), etc.
• amino protective group may be lower alkoxycarbonyl or ar (lower) alkoxycarbonyl and the most preferred one may be t-butoxycarbonyl or benzyloxycarbonyl.
• the object compound (I) can be prepared by subjecting a compound (II) or a salt thereof to elimination reaction of amino protective group. This reaction is . carried out in accordance with a conventional method such as hydrolysis, reduction or the like.
• the hydrolysis is preferably carried out in the presence of a base or an acid including Lewis acid.
• Suitable base may include an inorganic base and an organic base such as an alkali metal [e.g. sodium, potassium, etc.], an alkaline earth metal [e.g. magnesium, calcium, etc.], the hydroxide or carbonate or bicarbonate thereof, trialkyla ine [e.g. trimethylamine, triethylamine, etc.], picoline, 1, 5-diazabicyclo[4.3.0]non-5-ene, 1, 4-diazabicyclo[2.2.2]octane, 1, 8-diazabicyclo [5.4.0]undec-7-ene, or the like.
• Suitable acid may include an organic acid [e.g.
• the reduction method applicable for the elimination reaction may include chemical reduction and catalytic reduction are a combination of metal [e.g. tin, zinc, iron, etc.] or metallic compound [e.g. chromium chloride, chromium acetate, etc.] and an organic or inorganic acid [e.g.
• Suitable catalysts to be used in catalytic reduction are conventional ones such as platinum catalysts [e.g. platinum plate, spongy platinum, platinum black, colloidal platinum, platinum oxide, platinum wire, etc.], palladium catalysts [e.g. spongy palladium, palladium black, palladium oxide, palladium on carbon, colloidal palladium, palladium on barium, sulfate, palladium on barium carbonate, etc.], nickel catalysts [e.g.
• the reduction is usually carried out in a conventional solvent which does not adversely influence the reaction such as water, methanol, ethanol, propanol, N,N-d ⁇ methylformam ⁇ de, or a mixture thereof.
• a suitable solvent to be used in catalytic reduction may be the above-mentioned solvent, and other conventional solvent such as diethyl ether, dioxane, tetrahydrofuran, etc., or a mixture thereof.
• reaction temperature of this reduction is not critical and the reaction is usually carried out under cooling to warming.
• the object compound (I) can be prepared by subjecting a compound (III) to desalting reaction.
• This reaction is carried out in accordance with a conventional method such as neutralization, recrystallization, desalting resin column chromatography, or the like.
• the compounds obtained by the above Processes 1 and 2 can be isolated and purified by a conventional method such as pulverization, recrystallization, colu n- chromatography, reprecipitation, or the like.
• the object compound (I) may include solvated compound [e.g., enclosure compound (e.g., hydrate, etc.)].
• solvated compound e.g., enclosure compound (e.g., hydrate, etc.)
• the object compound (I) is crystalline, and so it is stable and easy to handle.
• Washed human platelets were prepared from platelet- rich plasma by gel filtration. The washed platelets were activated with 20 ⁇ M ADP for 10 minutes and then fixed for 30 minutes with 0.8% paraformaldehyde. The platelets were then washed by centrifugation and suspended in HEPES- Tyrodes buffer containing 2 mM CaCl 2 and 1 mM MgCl 2 •
• the pharmaceutical composition of the present invention can be used in the form of a pharmaceutical preparation, for example, in solid, semisolid or liquid form, which contains the object compound (I) , as an active ingredient in admixture with an organic or inorganic carrier or excipient suitable for rectal, pulmonary (nasal or buccal inhalation), nasal, ocular, external (topical), oral or parenteral (including subcutaneous, intravenous and intramuscular) administrations or insufflation.
• an organic or inorganic carrier or excipient suitable for rectal, pulmonary (nasal or buccal inhalation), nasal, ocular, external (topical), oral or parenteral (including subcutaneous, intravenous and intramuscular) administrations or insufflation.
• the active ingredient may be compounded, for example, with the usual non-toxic, pharmaceutically acceptable carriers for tablets, pellets, troches, capsules, suppositories, creams, ointments, aerosols, powders for insufflation, solutions, emulsions, suspensions, and any other form suitable for use. And, if necessary, in addition, auxiliary, stabilizing, thickening and coloring agents and perfumes may be used.
• the object compound (I) is included in the pharmaceutical composition in an amount sufficient to produce the desired effect upon the process or condition of the diseases.
• the pharmaceutical composition of the present invention can be manufactured by the conventional method in this field of the art. If necessary, the technique generally used in this field of the art for improving the bioavailability of a drug can be applied to the pharmaceutical composition of the present invention.
• compositions for applying the composition to a human being or an animal, it is preferable to apply it by intravenous (including i.v. infusion), intramuscular, pulmonary, or oral administration, or insufflation including aerosols from metered dose inhalator, nebulizer or dry powder inhalator.
• While the dosage of therapeutically effective amount of the object compound (I) varies from and also depends upon the age and condition of each individual patient to be treated, in the case of intravenous administration, a daily dose of 0.001-100 mg of the object compound (I) per kg weight of a human being or an animal, in the case of intramuscular administration, a daily dose of 0.001-100 mg of the object compound (I) per kg weight of a human being or an animal, in case of oral administration, a daily dose of 0.001-200 mg of the object compound (I) per kg weight of a human being or an animal in generally given for the prevention and/or the treatment of aforesaid diseases in a human being or an animal .

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• 1997
  • 1997-03-12 EP EP97907277A patent/EP0888302A1/de not_active Withdrawn
  • 1997-03-12 CA CA002248809A patent/CA2248809A1/en not_active Abandoned
  • 1997-03-12 JP JP9532437A patent/JP2000506524A/ja active Pending
  • 1997-03-12 KR KR1019980707159A patent/KR19990087694A/ko not_active Application Discontinuation
  • 1997-03-12 WO PCT/JP1997/000769 patent/WO1997033869A1/en not_active Application Discontinuation

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