WO2005007651A1 - 2-アシルアミノチアゾール誘導体又はその塩 - Google Patents
2-アシルアミノチアゾール誘導体又はその塩 Download PDFInfo
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- WO2005007651A1 WO2005007651A1 PCT/JP2004/010440 JP2004010440W WO2005007651A1 WO 2005007651 A1 WO2005007651 A1 WO 2005007651A1 JP 2004010440 W JP2004010440 W JP 2004010440W WO 2005007651 A1 WO2005007651 A1 WO 2005007651A1
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- 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
- A61K31/41—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with two or more ring hetero atoms, at least one of which being nitrogen, e.g. tetrazole
- A61K31/425—Thiazoles
- A61K31/426—1,3-Thiazoles
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D417/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00
- C07D417/14—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00 containing three or more hetero rings
-
- 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
- A61P7/06—Antianaemics
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D417/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00
- C07D417/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00 containing two hetero rings
- C07D417/04—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00 containing two hetero rings directly linked by a ring-member-to-ring-member bond
Definitions
- the present invention relates to a medicament, particularly a novel 2-acylaminothiazole derivative or a salt thereof useful as a therapeutic agent for thrombocytopenia, and a medicament containing the compound as an active ingredient.
- Platelets are non-nucleated blood cells that play a major role in physiological hemostasis and pathological thrombus formation. In vivo, platelets are constantly produced by precursor megakaryocytes. Platelet production is derived from pluripotent stem cells, like other blood cells, and pluripotent stem cells become megakaryocyte progenitors and then into megakaryoblasts, prokaryotes, and megakaryocytes. In the process of megakaryocyte maturation, immature megakaryocytes become polyploid by performing only DNA synthesis without cell division. After that, cytoplasmic maturation begins, a platelet separation membrane is formed, the cytoplasm is ruptured, and platelets are released.
- platelet depletion due to various hematopoietic disorders in aplastic anemia, myelodysplastic syndrome, or malignant tumor chemotherapy or radiation therapy causes severe symptoms such as bleeding tendency.
- the most effective means of treating thrombocytopenia is platelet transfusion, but platelet transfusion is not provided because a sufficient amount of platelets is not supplied and the life span of the transferred platelets is short. It is difficult to ameliorate the reduction satisfactorily.
- platelet transfusion has problems such as virus infection, production of alloantibodies, and Graft Versus Host Disease (GVHD). others Therefore, development of a drug that alleviates the suppressive state of hematopoietic function caused by various symptoms or treatment and promotes the recovery of platelet count is expected.
- GVHD Graft Versus Host Disease
- TPO has already been clinically tested as a platelet-increasing agent, Its usefulness and tolerability in humans is being confirmed.
- PEG-rHuMGDF a type of TPO (the amino acid at position 163 from the N-terminus of TPO, to be modified with polyethylene glycol)
- Neutralizing antibodies were identified in clinical trials (Li J. et. Al. Blood, 98, 3241-3248, 2001: Non-patent Document 2, and Basser RL et.
- Patent Document 1 benzodiazepine derivatives
- Patent Document 2 acylhydrazone derivatives
- Patent Document 3 diazonaphthalene derivatives
- Patent Document 4 pyrrolocarbazole derivatives
- Patent Document 5 pyrrolophenanthridine derivatives.
- Patent Document 5 pyrrolophthalimide derivatives
- Patent Document 7 describes that a compound represented by the following general formula (VII) has a platelet-increasing effect.
- This publication describes a compound containing thiazole which may be substituted as X 1 and -NHCO- as Y 1 .
- R 3 in the compound of the present invention is not substituted with a substituent having an A 1 group such as a thiazolyl group in the publication.
- there is no specific disclosure in the publication herein, examples and other examples of the compound in which the thiazole is substituted with a lower alkyl substituted with a nitrogen atom at the 5-position).
- Patent Document 8 describes that a compound represented by the following general formula (VIII) has a platelet-increasing effect.
- This publication describes a compound containing thiazole which may be substituted as X 1 and -NHCO- as Y 1 .
- R 3 in the compound of the present invention is not substituted with a substituent having a W 1 group described in the publication.
- Patent Document 9 describes that a compound represented by the following general formula (IX) has a platelet-increasing effect.
- the publication discloses a compound in which a nitrogen atom is directly substituted at the 5-position of 2-acylaminothiazole. There is a description about the thing. However, there is no mention in the present invention of the compound in which the thiazole 5-position is substituted by a lower alkyl substituted by a nitrogen atom.
- Patent Document 10 describes that a compound represented by the following general formula (X) has a platelet-increasing effect.
- Patent Document 11 a 2-acylaminothiazole compound is disclosed in Japanese Patent No. 3199451 (Patent Document 11) as a cholecystokinin and gastrin receptor antagonist, or as a chemical and pharmacological agent.
- Bulletin, 25, 9, 2292-2299, 1977 Non-Patent Document 4 discloses compounds having anti-inflammatory properties, but none of them mention the platelet-increasing effect of the present invention.
- Patent Document 1 Japanese Patent Application Laid-Open No. 11-152276
- Patent Document 2 WO 99/11262 pamphlet
- Patent Document 3 WO 00/35446 pamphlet
- Patent Document 4 WO 98/09967 pamphlet (Patent Document 5) JP-A-10-212289
- Patent Document 7 International Publication No. 01/074 2 3 pamphlet
- Patent Document 8 WO 01/53267 pamphlet
- Patent Document 9 WO 02/62775 pamphlet
- Patent Document 10 WO 03/062233 Breadlet
- Patent Document 11 Japanese Patent No. 3199451
- Non-patent document 1 Nature, 1994, No. 369, p.568-571
- Non-patent document 2 Blood, 2001, Vol. 98, p.3241-3248
- Non-patent document 3 Blood, 2002, Vol. 99, .2599-2602
- Non-Patent Document 4 Chemical and Pharmaceutical Bulletin, 1977, Vol. 25, No. 9, p.2292-2299 Disclosure of the Invention
- the present inventors have intensively studied compounds having a thrombocytosis effect, found that a novel 2-acylaminothiazole derivative has an excellent thrombocytosis effect, and completed the present invention.
- a platelet-increasing agent comprising a 2-acylaminothiazole derivative represented by the formula (I) or a pharmaceutically acceptable salt thereof as an active ingredient.
- R 1 a group represented by the formula (II) or a cyclic amino which may be substituted.
- R 11 H, optionally substituted lower alkyl, or optionally substituted cycloalkyl.
- R 11 may be present as methylene bridging to phenyl or fuel represented by R 2 .
- R 11 may be substituted for lowering the methylene represented by A, or may be present as a lower alkylene.
- R 12 optionally substituted lower alkyl, cycloalkyl or non-aromatic heterocycle.
- R 2 Cheel or Albert which may be substituted.
- R 3 an optionally substituted aromatic heterocycle, aryl or cyclic amino.
- R 4 a group represented by R 1 in Claim 1.
- R 5 a group represented by R 2 in Claim 1.
- R 6 a group represented by R 3 in Claim 1. However, unsubstituted phenyl and indole which may be substituted are excluded. ]
- R 5 is phenyl or phenyl substituted with one or more groups selected from the group consisting of lower alkyl optionally substituted with one or more halogens, and halogen. And the compound of (7). '
- R 6 is a pyridine-3-yl substituted at the 5-position with a group selected from the group consisting of black and fluoro and further substituted at the 6-position, or a group consisting of black and fluoro
- a compound selected from the group consisting of compound group X and compound group Y Preferably, a compound selected from Compound Group X.
- a pharmaceutical composition comprising the compound according to any one of claims 6 to 10 as an active ingredient.
- composition according to claim 11 which is a therapeutic agent for thrombocytopenia.
- composition according to claim 11 which is a c-Mpl ligand.
- a in the compound represented by the formula (I) and B in the compound represented by the formula (III) are preferably methylene.
- R 11 is lower alkyl
- R 12 is each optionally substituted lower alkyl.
- R 2 in the compound represented by the formula (I) and R 5 in the compound represented by the formula (III) are preferably an optionally substituted thienyl; more preferably, at least one halogen A phenyl substituted with one or more substituents selected from the group consisting of lower alkyl which may be substituted with, and halogen; more preferably selected from the group consisting of methyl and methyl.
- phenyl substituted with one or more groups particularly, 4-chlorothiophen-2-yl or 4-methylthiophen-2-yl.
- R 5 in the compound represented by the formula (I) and in the compound represented by the formula (III) phenyl which may be substituted may be mentioned; And phenyl substituted with one or more groups selected from the group consisting of lower alkyl optionally substituted with one or more halogens, and halogen; more preferably trifluoromethyl, chloro
- R 3 in the compound represented by the formula (I) and R 6 in the compound represented by the formula (III) are preferably pyridyl which may be substituted; more preferably, at least one halogen And more preferably pyridyl substituted at the 5-position with a group selected from the group consisting of black and fluoro and further substituted at the 6-position.
- piperidine-1-yl optionally substituted with one or more groups selected from the group consisting of lower alkyl substituted with substituent group W, substituent group W and oxo Or piperazine-1-yl; and -0-lower alkyl, -NH-lower alkyl or -N (each optionally substituted with one or more groups selected from substituent group W.
- Pyridine-3-yl substituted at the 6-position with a group selected from the group consisting of lower alkyl) -lower alkyl; and substituted at the 5-position with a group selected from the group consisting of black and fluoro is preferred.
- R 3 in the compound represented by the formula (I) and R 6 in the compound represented by the formula (III) includes an optionally substituted file; More preferably, it is a file substituted with at least one halogen; still more preferably, it is substituted at the 3-position with a group selected from the group consisting of ⁇ and ⁇ , and-, and ⁇ It is a phenyl substituted at the 5-position with a group selected from the group consisting of the mouth, and further substituted at the 4-position.
- lower alkyl substituted with substituent group W one or more groups selected from the group consisting of substituent group W and oxo, and piberidin_1_yl or piperazine optionally substituted with one or more groups, respectively.
- substituent group W one or more groups selected from the group consisting of substituent group W and oxo, and piberidin_1_yl or piperazine optionally substituted with one or more groups, respectively.
- -1-yl and each optionally substituted with one or more groups selected from substituent group W-0-lower alkyl, -NH-lower alkyl or -N (lower alkyl)-
- a lower alkyl substituted at the 4-position by a group selected from the group consisting of: and a 3-position substituted by a group selected from the group consisting of chloro and fluoro, and selected from the group consisting of _H, chloro, and fluoro.
- R 11 when A represents a methylene, R 11 is Choi represented by R 2 - it may also be present as methylene which crosslink to Le or phenyl les," in R 11 and is specifically Means that the compound has a partial structure as shown in Table 30. Also, "when indicating an A is methylene, R 11 is present may also be a lower alkylene which may be substituted for ring closure to a methylene represented by A" in R 11 and, specifically, for example Table 33 means to show the partial structure of the compound as listed in 3.
- the compound of the present invention has a chemical structural feature in that it is a 2-acylaminothiazole derivative substituted at the 2-position with an acylamino group and substituted at the 5-position with a lower alkyl substituted with a nitrogen atom.
- the compound of the present invention exhibits human c-mpl-Ba / F3 cell-proliferating activity, human CD34 + cell-promoting activity on megakaryocytes, and good oral activity in a mouse oral administration test. It has pharmacological characteristics in that it has a platelet-increasing effect.
- lower means a straight or branched carbon chain having 1 to 6 carbon atoms unless otherwise specified.
- lower alkyl refers to alkyl of C 1-6, specifically, for example methylation, Echiru, propyl, isopropyl, butyl, Isopuchiru, sec- butyl, tert- heptyl, hexyl pentyl, neopentyl, to And the like, and preferred are methyl, ethyl, propyl, and isopropenyl of C 1-3 alkyl.
- the “lower alkylene” is a divalent group of C 1-6 alkyl, preferably methylene, ethylene, trimethylene, methynoleethylene, tetramethylene, dimethylmethylene, or dimethylethylene of C 14 alkylene, and more preferably Methylene and ethylene, with methylene being particularly preferred.
- Cycloalkyl means a C 3-8 carbocycle, which may have partially unsaturated bonds. Therefore, specifically, for example, cyclopropyl, cyclopentinole, cyclopentinole, cyclohexinole, cyclooctinole, cyclobuteninole, Cyclohexenyl, cyclooctenyl, and the like.
- the "Ariru” means an aromatic monocyclic or tricyclic C 6- 14, preferably Hue, naphthyl, more preferably Hue - a le. '
- Cyclic amino refers to a ring having 3 to 8 ring members which has at least one nitrogen atom and may further have one or more same or different hetero atoms selected from the group consisting of nitrogen, oxygen and sulfur. It means a monovalent group of a non-aromatic cyclic amine, in which at least one nitrogen atom has a bond. Specific examples include monovalent groups such as azetidine, pyrrolidine, piperidine, azepan, a5 zocan, azonan, azecan, piperazine, homopidazine, morpholine and thiomorpholine.
- Non-aromatic heterocycle means a monovalent group of a non-aromatic heterocycle having at least one same or different heteroatom selected from the group consisting of nitrogen, oxygen and sulfur. Examples thereof include monovalent groups of tetrahydrofuran, tetrahydropyran, tetrahydrothiofuran, tetrahydrothiopyran, oxetane, azetidine, pyrrolidine, piperidine, azepan, piperazine, homopyrazine, morpholine, and thiomorpholine. it can.
- Aromatic heterocycle refers to a 5- to 6-membered aromatic heterocycle having at least one same or different heteroatom selected from the group consisting of nitrogen, oxygen and sulfur, or a partially hydrogen atom thereof.
- Halogen includes fluoro, chloro, bromo and odo, preferably fluoro and chloro.
- any substituent may be used as long as it is a substituent generally used as a substituent for each group. Further, one or more of these substituents may be present in each group.
- R 1 ?? Pi R 4 "optionally substituted cyclic amino optionally” in the "cycloalkyl which may optionally be substitution” in R 11, Moyoi cycloalkyl or non-aromatic optionally be “substituted, respectively, in R 12
- substituents permissible in the “heterocyclic group” “optionally substituted phenyl or phenyl” in R 2 and R 5 , the following groups (a) to (h) are mentioned. No.
- (D) 1 or 2 R z which may be substituted with Amino, -NHCO-R z, -NHCO- Ryo reel, -NHC0 2 -R z, -NHCON3 ⁇ 4, -NHS0 2 -R z, -NHS0 2 - Ariru, -NHS0 2 NH 2, two Bok [pi;
- (E) -CHO, -CO-R z, -C0 2 H, -C0 2 -R z, 1 or 2 R z may be substituted by Karupamoiru, Shiano;
- substituents in the ⁇ aromatic heterocyclic ring aryl or cyclic amino which may be substituted respectively '' in R 3 and R 6, the substituent may be substituted with halogen, one or more halogens.
- lower alkyl, -OH, -0-R z may be mentioned O Kiso, - one or two optionally substituted with R z Amino, group Ru represented by formula (III).
- the substituent is an amino substituted with two Rz , the two Rz may be the same or different.
- X -OH, -0- lower alkyl, halogen, Okiso and one or more cyclic ring Aminjiiru be substituted with a group selected from the group consisting of R z.
- Y a single bond, -0-lower alkylene-, or -N (lower alkyl) -lower alkylene-.
- Z Substituent group W, -cyclic amidinedyl-substituent group W, or -CO-cyclic amidinedyl-substituent group w. ]
- Cyclic amine diyl refers to a group having 3 to 8 ring members which has at least one nitrogen atom and may further have one or more same or different hetero atoms selected from the group consisting of nitrogen, oxygen and sulfur. It means a divalent group of a non-aromatic cyclic amine, in which at least one nitrogen atom has a bond. Specific examples include divalent groups of azetidine, pyrrolidine, piperidine, azepan, azocan, azonan, azecan, piperazine, homopirazazine, monoreforin, and thiomorpholine.
- the compound represented by the formula (I), which is an active ingredient of the medicament of the present invention, or the compound represented by the formula (III), which is a compound of the present invention contains an asymmetric carbon atom depending on the type of the substituent. There may be optical isomers based on this.
- the present invention encompasses all mixtures and isolated forms of these optical isomers.
- the compound according to the present invention may have tautomers, and the present invention includes a separated form or a mixture of these isomers.
- the present invention also includes a label body, that is, a compound in which one or more atoms of the compound of the present invention are replaced with a radioactive isotope or a non-radioactive isotope.
- the compound according to the present invention may form a salt, and is included in the present invention as long as the salt is a pharmaceutically acceptable salt.
- inorganic acids such as hydrochloric acid, hydrobromic acid, hydroiodic acid, sulfuric acid, nitric acid, phosphoric acid, formic acid, acetic acid, propionic acid, oxalic acid, malonic acid, kono, succinic acid, fumaric acid , Maleic acid, lactic acid, malic acid, tartaric acid, citric acid, methanesulfonic acid, ethanesulfonic acid,
- Acid addition salts with organic acids such as P-toluenesulfonic acid, aspartic acid or glutamic acid; inorganic bases containing metals such as sodium, potassium, calcium, and magnesium; methylamine, ethylamine, ethanolamine, lysine, orditin, etc. Examples thereof include salts with organic bases and ammonium salts.
- the present invention also includes substances having hydrates, solvates, and polymorphs of each of the compounds of the present invention and pharmaceutically acceptable salts thereof. In the present invention, the metabolism in vivo
- prodrugs are all included.
- examples of the group that forms the prodrug of the present invention include those described in Prog. Med. 5: 2157-2161 (1985), and “Development of Pharmaceuticals”, Hirokawa Shoten 1990, Vol. 7, page 163-198.
- the groups described in (1) are listed. (Manufacturing method)
- the compound according to the present invention and a pharmaceutically acceptable salt thereof can be produced by applying various known synthetic methods by utilizing the characteristics based on the basic skeleton or the type of the substituent. .
- the following is a typical production method.
- it is effective in manufacturing technology to replace the functional group with an appropriate protecting group at the raw material or intermediate stage, that is, a group that can be easily converted to the functional group. There are some cases. Thereafter, the desired compound can be obtained by removing the protecting group, if necessary.
- Examples of such a functional group include a hydroxyl group, a carboxyl group, and an amino group.
- Examples of such a protective group include "Protective Groups in Organic Synthesis (third edition)" by Greene and Wuts. )) ”, And these may be used as appropriate according to the reaction conditions.
- R 7 is a group represented by the above formula (II) wherein R 11 is H, optionally substituted lower alkyl, or optionally substituted cycloalkyl, or A good cyclic amino;
- R 8 represents a group represented by R 2 or R 5 above;
- R 9 represents a group represented by R 3 or R 6 above, or a person skilled in the art will usually find Represents a group that can be converted to R 3 or by the following method. The same applies hereinafter.
- compound (lc) is produced by amidating compound (lb) or a reactive derivative thereof with compound (la) or a salt thereof by an ordinary method, and removing a protecting group as necessary. It is a process.
- amidation that can be generally used by those skilled in the art can be employed.
- Condensing agents such as -ethyl-3- (3-dimethylaminopropyl) carbodiimide hydrochloride (WSC'HCl), dicyclohexylcarbodiimide, carbodidiimidazole, diphenylphosphoryl azide, and getyl phosphoryl cyanide
- WSC'HCl -ethyl-3- (3-dimethylaminopropyl) carbodiimide hydrochloride
- dicyclohexylcarbodiimide carbodidiimidazole
- diphenylphosphoryl azide diphenylphosphoryl azide
- getyl phosphoryl cyanide The method of acting is preferably used.
- the reaction varies depending on the reaction used, such as the derivative and the condensing agent.
- halogenated hydrocarbons such as methane, dichloroethane, and chloroform are used; aromatic hydrocarbons such as benzene, toluene, and xylene; Ethers such as ether and tetrahydrofuran (THF); esters such as ethyl acetate (EtOAc); acetonitrile, ⁇ , ⁇ -dimethylformamide (DMF) ⁇ dimethylsulfoxide
- the reaction is performed in an organic solvent inert to the reaction such as (DMSO) under cooling, from cooling to room temperature, or from room temperature to heating.
- organic solvent inert such as (DMSO) under cooling, from cooling to room temperature, or from room temperature to heating.
- an aminomethyl group is introduced into the thiazole 5-position of the compound (lc) by using a Mannich reaction using the compound (le) to convert the compound (I) or (III) of the present invention.
- This is the manufacturing process. Albertson, NF; JAm Chem Soc 1948, 70, 669., Bhargava, PN; Sharma, SC; Bull Chem Soc Jpn 1965, 38, 909., or a method analogous thereto.
- the compound (I) of the present invention is obtained by introducing an acetomethyl group into the thiazole 5-position of the compound (lc) to give a compound (Id), and then subjecting the compound (le) to a nucleophilic substitution reaction with the compound (le) under basic conditions. Or, the step of producing (III).
- the acetoxymethyl i-dani in the step C can be carried out by reacting the compound (lc) with an aqueous formaldehyde solution or paraformaldehyde in an acetic acid solvent at room temperature to under heating, or at room temperature to reflux.
- acetic acid may be added in a solvent inert to the reaction of halogenated hydrocarbons, aromatic hydrocarbons, ethers, etc., and the reaction may be carried out. Tends to decrease. Further, the reaction can be carried out by further adding acetic anhydride.
- the nucleophilic substitution reaction in step D is carried out by reacting compound (Id) with an organic solvent inert to the reaction of halogenated hydrocarbons, aromatic hydrocarbons, ethers, esters, acetonitrile, DMF, DMSO, etc.
- Compound (le) in the presence of an organic base such as triethylamine, diisopropylethylamine, or an inorganic base such as Z or potassium carbonate, sodium carbonate, cesium carbonate, or sodium hydrogencarbonate. it can.
- a catalyst such as dimethylaminopyridine may be added to accelerate the reaction.
- the compound (le) may be used in excess.
- the reaction varies depending on the base used, but can be performed under cooling to room temperature, at room temperature to under heating, and at room temperature to under reflux. (2nd manufacturing method)
- X is a leaving group such as halogen
- Y is lower alkyl
- n is an integer of 1 to 6. The same applies hereinafter.
- This production method is characterized in that, among the compounds according to the present invention represented by the formula (I) or (III), A or B is a lower alkylene other than methylene, and R 1 and R 2 or R 4 and R 5 Is a non-crosslinked compound in which R 1 and A or R 4 and B are not closed.
- This step is a step of condensing compound (2a) and compound (2b) to produce compound (2c).
- This step is a step of halogenating the ⁇ -position of the ketone of the compound (2c) and then using thiourea to construct a thiazole ring.
- thiourea 0rg. Syn. Coll. Vol. II, 1943, 31-32., Maruzen Co., Ltd., 1992, "4th Edition Experimental Chemistry Course 19", page 431-435. Or a method similar thereto.
- the compound (2d) or, if necessary, the hydrolyzed carboxylic acid compound is subjected to amidation according to the first production process step A, and then an amide bond is formed by a reduction reaction.
- This is a step of converting to an aminomethylene bond.
- the method described in Maruzen Co., Ltd., 1992, “Fourth Edition Experimental Chemistry Course 26”, pp. 227-228, or a method similar thereto can be used.
- the compound ab) and the compound (2e) are amidated to produce the compound (I) or (III) of the present invention. It can be performed according to the first production process A.
- R 12 represents the aforementioned group. The same applies hereinafter.
- This production method is a method for producing a compound of the present invention represented by the formula (I) or the formula (III), wherein R 2 or is cross-linked by R 11 .
- R 11 is present as methylene bridging to R 2 or R 5 when A or B is methylene and R 1 or R 4 is a group represented by the formula (II) according to the above definition.
- an aminomethyl group is introduced at the 5-position of the thiazole of the compound (lc) using the Mannich reaction using the compound (lc), followed by the second Mannich reaction.
- This is a step of subjecting the formed imidium to nucleophilic attack with phenyl or phenyl represented by R 2 to give a tricyclic compound of the present invention. It can be carried out according to the first manufacturing method step B.
- n represents an integer of 1 to 6. The same applies hereinafter.
- This production method is a method for producing a compound of the present invention represented by the formula (I) or (I ⁇ ⁇ ) wherein R 1 and ⁇ or R 4 and ⁇ are closed by R 11. It is. Even if R 11 is substituted to ring-close to A or B, the lower alkylene is present as defined above because A or B is methylene and R 1 or R 4 is a group represented by the formula (II) This is the case where the group is represented by
- This step can be performed according to the method of Van Tamelin, EE; Knapp, GC; J. Am. Chem. Soc, 77, 1860, 1955.
- the group represented by R 9 in the first production method to fourth method the appropriate time for the process is converted into R 3 or R 6 may proceed to the next step.
- a conversion method for example, in step A, 5,6-dichloropyridine-3-yl or 3,4,5-difluorophenyl is introduced as R 9 and, at an appropriate time, for example, in the method 1, before the step B, before the step C, or before the step D, ipso substitution is carried out by a nucleophilic substitution reaction to convert to a partial structure R 3 or R 6 of the compound according to the present invention. Methods can be mentioned.
- the compound according to the present invention thus produced is isolated or purified as it is or after subjecting to salt formation by a conventional method. Isolation and purification are performed by applying ordinary chemical operations such as extraction, concentration, distillation, crystallization, filtration, recrystallization, and various types of chromatography.
- Various isomers can be isolated by a conventional method utilizing the difference in physicochemical properties between the isomers.
- a racemic mixture can be converted to an optically pure isomer by a general racemic resolution method such as a method of deriving a diastereomer salt with a general optically active acid such as tartaric acid and performing optical resolution. it can.
- the diastereomer mixture can be separated by, for example, fractional crystallization or various types of chromatography.
- the optically active compound can also be produced by using an appropriate optically active raw material.
- the compounds according to the invention have an excellent platelet-increasing effect. Therefore, the compounds of the present invention may be used in aplastic anemia, thrombocytopenia in myelodysplastic syndrome, chemotherapy for malignant tumors, thrombocytopenia due to radiation therapy, thrombocytopenia in idiopathic thrombocytopenic purpura, and liver disease. Is useful for the treatment and prevention of various thrombocytopenia such as thrombocytopenia due to sickness and HIV, and when platelet loss may occur due to chemotherapy or radiation therapy, give those therapies It can also be administered beforehand.
- Efficacy The maximum cell proliferation activity of the test compound when the maximum cell proliferation activity of compound A (rTPO in compound A and rhTPO) is 100%.
- Compound A refers to the compound of Example 9 in Patent Document 10 described above.
- Comparative Compound 1 is the compound of Compound No.A-1 of Patent Document 7 described above.
- Comparative Compound 2 is the compound of Compound No. A-14 of Patent Document 8 described above;
- Comparative Compound 3 is the compound of Compound No. J-14 of Patent Document 8 described above; Is a compound of Example 2 of Patent Document 9 described above. Comparative compounds 1 to
- the compound of the present invention has a Ba / F3 cell proliferation action via human c-Mpl.
- mice Male ICR mice were orally administered 3 mg / kg or 10 mg / kg (100 mg / kg for Comparative Compounds 1-3) of the test compound dissolved or suspended in a 0.5% methylcellulose aqueous solution. Two hours after the administration, blood was collected from the inferior vena cava with ⁇ / 10 volume of 3.8% sodium triate as an anticoagulant. Plasma obtained by centrifugation at 12,000 rpm for 3 minutes and heated at 56 for 30 minutes was added to the human c-mpl-Ba / F3 cell proliferation test system described in (i) at a final concentration of 0.3% and 1%. Alternatively, the cells were added to 3% plasma (10% for Comparative Compounds 1 to 3) and the cell proliferation activity was measured. The cell proliferation activity (%) of each plasma was determined when the maximum cell proliferation activity of each test compound was defined as 100%. The results are shown in Table 2.
- Comparative compounds 1-3 in the table are the same as comparative compounds 1-3 in Table 1 above, respectively. The same compound.
- the compound of the present invention had oral activity in mice.
- the comparative compound showed almost no oral activity even under the condition of 100 mg / kg—10% dilution, but the compound of the present invention showed a lower dose of 3 mg / kg or 10%.
- the compound had good oral activity even under the condition of 3% dilution or less, which is higher than mg / kg-. It is believed that this was achieved by the introduction of a lower alkylene having The cell proliferation activity of Comparative Compound 2 and Comparative Compound 3 was 10% or less even at a lower dose (10 mg / kg p.o.).
- administration of the compound of the present invention to a mouse in which human platelet production was observed after transplantation of human hematopoietic stem cells showed a thrombocytosis activity.
- the medicament of the present invention is obtained by using at least one compound of the present invention represented by the formula (I) or (III) and a drug carrier, an excipient, and other additives usually used for formulation. It can be prepared by commonly used methods. Oral administration by tablets, pills, capsules, granules, powders, liquids, etc., injections by intravenous injection, intramuscular injection, etc., or parenteral administration by suppositories, nasal, transmucosal, transdermal, etc. Either form may be used.
- the one or more active'1 to raw materials comprise at least one inert diluent, such as lactose, mannitol, pudose, hydroxypropylcellulose, microcrystals It is mixed with cellulose, starch, polyvinylpyrrolidone and magnesium aluminate metasilicate.
- the composition is prepared according to a conventional method using additives other than an inert diluent, for example, a lubricant such as magnesium stearate, a disintegrant such as calcium cellulose glycolate, a stabilizer, and a solubilizing agent. Including You may have.
- tablets or pills may be coated with a sugar coating such as sucrose, gelatin, hydroxypropylcellulose, hydroxypropylmethylcellulose phthalate or a gastric or enteric film.
- Liquid compositions for oral administration include pharmaceutically acceptable emulsions, solutions, suspensions, syrups, elixirs and the like, and commonly used inert diluents such as purified water Contains ethanol (EtOH).
- the composition may contain, in addition to the inert diluent, adjuvants such as wetting agents and suspending agents, sweetening agents, flavoring agents, fragrances, and preservatives.
- Injections for parenteral administration include sterile aqueous or non-aqueous solutions, suspensions, and emulsions.
- Aqueous solutions and suspensions include, for example, distilled water for injection and physiological saline.
- Non-aqueous solutions and suspensions include, for example, propylene glycol, polyethylene glycol, vegetable oils such as olive oil, alcohols such as EtOH, polysorbate 80 and the like.
- Such compositions may also contain adjuvants such as preserving, wetting, emulsifying, dispersing, stabilizing, and solubilizing agents. These are sterilized by, for example, filtration through a pacteria retaining filter, blending of a bactericide or irradiation. They can also be used in the preparation of a sterile solid composition which is dissolved in sterile water or a sterile solvent for injection before use.
- the daily dose is about 0.0001 to 50 mg / kg per body weight, preferably about 0.001 to 10 mg / kg, and more preferably 0.01 to 1 mg / kg. This is administered once or in 2 to 4 divided doses.
- the daily dose is about 0.0001 to 1 mg / kg, preferably about 0.0001 to 0.1 mg / kg per body weight, and it is administered once or more than once a day. The dose is appropriately determined depending on the individual case in consideration of symptoms, age, sex, and the like.
- the present invention will be described specifically with reference to examples, but the present invention is not limited to these examples.
- the raw material conjugate used in the examples also includes a novel substance, and a method for producing such a raw material compound from a known material will be described as a reference example.
- R, RR 2 , R 3 , R 4 , X, Y substituents in the general formula (Me: methyl, Et: ethyl, iPr: isopropyl, cPr: cyclopropyl, nBu: normal butyl, iBu: isobutyl, tBu: Tertiary butyl, Ph: phenyl, Py: pyridyl, Boc: tert-butinoreoki Cicarbol, The: Chenil, azet: Azetidine-1-yl, pyrr: Pyrrolin-1-yl, pipe: Piperidine-1-yl, pipa: Piperazine-1-inole, mor: Morpholine- 4-yl, TBS: tert-butyldimethylsilyl, di: di.
- Bromine was added to an ether solution of 4-tert-butyl-2-acetylthiophene under ice-cooling, and the mixture was stirred at room temperature for 2 hours to obtain a bromo form.
- Thiourea was added to the solution of the bromo compound in EtOH at room temperature, and the mixture was stirred at 80 ° C. under reduced pressure to obtain 2-amino-4- (4-chlorothiophen-2-yl) thiazole.
- Reference Example 14 shown in Table 4 was prepared in the same manner as Reference Example 13 using the corresponding raw materials. Manufactured using
- Reference Examples 24 to 31 shown in Table 6 were produced in the same manner as in Reference Example 23 using the corresponding raw materials.
- Triethylamine and ethyl ethyl sonipecotate are added at room temperature, and the mixture is stirred at 80 ° C for 15 hours, and then 1- [3-kuguchi-5-( ⁇ 4- [3- (trifluoromethyl) phenyl] thiazol-2-ol Yl ⁇ bummoyl) -2-pyridyl] piperidine-4-carboxylic acid ethyl ester was obtained.
- Reference Examples 39 to 40 shown in Table 10 were produced in the same manner as in Reference Example 38 using the corresponding raw materials.
- ester mixture was dissolved in MeOH, and triethylamine and sodium methoxide were added. The mixture was stirred at room temperature for 18 hours at 50 ° C, and then added with 1 [ ⁇ 4- (4-chlorothiophen-2-yl) thiazole [2-yl] carpamoyl ⁇ -1,4'-bipiperidine-4-carboxylic acid methyl ester was obtained.
- the reaction solution was ice-cooled, water was added, extracted with chloroform, washed with saturated saline and dried over magnesium sulfate.
- the residue obtained by evaporating the solvent under reduced pressure was purified by silica gel column chromatography using chloroform: MeOH (99 ::! To 98: 2) as an eluent. Obtained
- the crude product was suspended in methanol, and insolubles were removed by filtration. The solvent was distilled off under reduced pressure. The obtained residue was dissolved in EtOAc, a 4M HCl-EtOAc solution was added, and the mixture was stirred.
- Example 13 40 mg of the compound of 32 was dissolved in 6 ml of MeOH, 1.6 ml of concentrated hydrochloric acid was added, and the mixture was stirred for 2 hours. After concentration, the precipitate was filtered, washed with EtOAc, and treated with 32 mg of N- [5- ⁇ [Butyl (methyl) amino] methyl ⁇ -4- (4-chlorothiophen-2-yl) thiazol-2-yl] -4- (2-hydroxymethoxy) -3-methoxybenzamide hydrochloride Salt was obtained.
- Example 190 To 190 mg of the compound of Example 190, 3 ml of a 4M HC1-dioxane solution was added, and the mixture was added at 50 ° C. For 18 hours. After cooling the reaction solution to room temperature, the precipitated solid was filtered to obtain 160 mg of [(1- ⁇ 3-chloro-5-[(4- (4-chlorothiophen-2-yl) -5- ⁇ [(2-Methoxyxethyl) (methyl) amino] methyl ⁇ thiazol-2-yl) carbamoyl] -2-pyridyl ⁇ -4-piperidyl) oxy] acetic acid hydrochloride was obtained.
- Tables 16 to 26 below show the structures and physical data of the example compounds. The symbols in the table have the following meanings (the same applies hereinafter).
- Ex Example number (If only a number is listed in the Ex column, it indicates that the compound of that example number is in a free form, and a diagonal line (/) and “HC1” are written following the number In this case, the compound of the example number indicates that the compound is a hydrochloride.)
- Syn production method (numbers were synthesized using the corresponding raw materials in the same manner as in the example compound having that number as the example number). .),
- R a substituent in the general formula (nPr: normal propyl, cBu: cyclobutyl, cHex: cyclohexyl, MOM: methoxymethyl, Ac: acetyl, Ms: methanesulfonyl, THF: tetrahydrofuryl, THP: tetrahydrovinyl Le).
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Abstract
Description
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Priority Applications (5)
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US10/564,520 US7361658B2 (en) | 2003-07-17 | 2004-07-15 | 2-acylaminothiazole derivative or salt thereof |
CA2529686A CA2529686C (en) | 2003-07-17 | 2004-07-15 | 2-acylaminothiazole derivative or salt thereof |
EP04747829A EP1647553A4 (en) | 2003-07-17 | 2004-07-15 | 2-ACYLAMINOTHIAZOL DERIVATIVE OR SALT THEREOF |
MXPA06000441A MXPA06000441A (es) | 2003-07-17 | 2004-07-15 | Derivado de 2-acilaminotiazole o sal del mismo. |
CN2004800204978A CN1835948B (zh) | 2003-07-17 | 2004-07-15 | 2-酰基氨基噻唑衍生物或其盐 |
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JP2003275718 | 2003-07-17 | ||
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US (1) | US7361658B2 (ja) |
EP (1) | EP1647553A4 (ja) |
JP (1) | JP4324791B2 (ja) |
KR (1) | KR100907317B1 (ja) |
CN (1) | CN1835948B (ja) |
CA (1) | CA2529686C (ja) |
MX (1) | MXPA06000441A (ja) |
WO (1) | WO2005007651A1 (ja) |
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WO2007036769A1 (en) * | 2005-07-05 | 2007-04-05 | Pfizer Products Inc. | Aminothiazole derivatives as agonists of the thrombopoietin receptor |
WO2007054783A3 (en) * | 2005-11-08 | 2008-07-03 | Astellas Pharma Inc | Compositions and methods for treating thrombocytopenia |
WO2009017098A1 (ja) | 2007-07-31 | 2009-02-05 | Shionogi & Co., Ltd. | トロンボポエチン受容体アゴニスト作用を有する光学活性な化合物を含有する医薬組成物およびその中間体 |
US7638536B2 (en) | 2002-01-18 | 2009-12-29 | Astellas Pharma Inc. | 2-Acylaminothiazole derivative or salt thereof |
JPWO2009145286A1 (ja) * | 2008-05-30 | 2011-10-13 | 武田薬品工業株式会社 | 複素環化合物 |
WO2013074459A1 (en) | 2011-11-14 | 2013-05-23 | Ligand Pharmaceuticals, Inc. | Methods and compositions associated with the granulocyte colony-stimulating factor receptor |
WO2014133056A1 (ja) | 2013-02-28 | 2014-09-04 | アステラス製薬株式会社 | 2-アシルアミノチアゾール誘導体またはその塩 |
WO2015186821A1 (ja) * | 2014-06-06 | 2015-12-10 | アステラス製薬株式会社 | 2-アシルアミノチアゾール誘導体またはその塩 |
WO2016031833A1 (ja) * | 2014-08-26 | 2016-03-03 | アステラス製薬株式会社 | 2-アミノチアゾール誘導体またはその塩 |
US9962370B2 (en) | 2013-03-15 | 2018-05-08 | Ligand Pharmaceuticals Incorporated | Methods of treatment associated with the granulocyte colony-stimulating factor receptor |
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JP4774995B2 (ja) * | 2005-01-12 | 2011-09-21 | アステラス製薬株式会社 | アシルアミノチアゾール誘導体を有効成分とする医薬組成物 |
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GB201617454D0 (en) | 2016-10-14 | 2016-11-30 | Heptares Therapeutics Limited | Pharmaceutical compounds |
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GB202020191D0 (en) | 2020-12-18 | 2021-02-03 | Heptares Therapeutics Ltd | Pharmaceutical compounds |
AU2021288584A1 (en) * | 2020-06-09 | 2023-01-19 | Anima Biotech Inc. | Collagen 1 translation inhibitors and methods of use thereof |
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- 2004-07-15 US US10/564,520 patent/US7361658B2/en not_active Expired - Fee Related
- 2004-07-15 CN CN2004800204978A patent/CN1835948B/zh not_active Expired - Fee Related
- 2004-07-15 JP JP2004208207A patent/JP4324791B2/ja not_active Expired - Fee Related
- 2004-07-15 KR KR1020067000994A patent/KR100907317B1/ko not_active IP Right Cessation
- 2004-07-15 EP EP04747829A patent/EP1647553A4/en not_active Withdrawn
- 2004-07-15 WO PCT/JP2004/010440 patent/WO2005007651A1/ja not_active Application Discontinuation
- 2004-07-15 MX MXPA06000441A patent/MXPA06000441A/es active IP Right Grant
- 2004-07-15 CA CA2529686A patent/CA2529686C/en not_active Expired - Fee Related
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WO2001007423A1 (fr) * | 1999-07-26 | 2001-02-01 | Shionogi & Co., Ltd. | Compositions medicamenteuses possedant une activite agoniste de la thrombopoietine |
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Also Published As
Publication number | Publication date |
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CA2529686A1 (en) | 2005-01-27 |
EP1647553A1 (en) | 2006-04-19 |
CA2529686C (en) | 2010-06-15 |
JP4324791B2 (ja) | 2009-09-02 |
MXPA06000441A (es) | 2006-04-05 |
US20060194844A1 (en) | 2006-08-31 |
KR100907317B1 (ko) | 2009-07-13 |
US7361658B2 (en) | 2008-04-22 |
CN1835948B (zh) | 2010-05-26 |
CN1835948A (zh) | 2006-09-20 |
JP2005047905A (ja) | 2005-02-24 |
EP1647553A4 (en) | 2008-12-31 |
KR20060039908A (ko) | 2006-05-09 |
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