Patents by Inventor Yorihisa Hoshino
Yorihisa Hoshino has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20110172427Abstract: This invention relates to a new synthesis, intermediates and precursors leading to a mixture of the compounds 11 and 12 as shown below. It also relates to the resolution of the stereoisomeric mixture to provide in substantial stereochemical purity compound 12. The synthesis of the invention involves preparation of compound 7 and compound 10 as shown below and their reaction to prepare a mixture of compound 11 and compound 12.Type: ApplicationFiled: August 26, 2009Publication date: July 14, 2011Applicant: EISAI R&D MANAGEMENT CO., LTD.Inventors: Taiju Nakamura, Masaaki Matsuda, Yongbo Hu, Daiju Hasegawa, Yorihisa Hoshino, Kazato Inanaga, Minetaka Isomura, Nobuaki Sato, Kazuhiro Yoshizawa, George A. Moniz, Gordon D. Wilkie, Francis G. Fang, Yoshihiro Nishikawa
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Patent number: 7858809Abstract: Intermediates useful for the synthesis of pyrazole-fused ring derivatives, such as 7-phenylpyrazolo [1,5-a]pyridine derivatives, and method for producing the same. Method for producing compound represented by the general formula (II), wherein Z1 and Z2 each independently represents a methine group or a nitrogen atom; Rl represents an ethyl group or the like; R5 represents a hydrogen atom or the like; R2 and R3 each independently represents a C1-6 alkyl group or the like, salts thereof, or solvates of both, comprising the step of: reacting a compound represented by the general formula (I), wherein Z1, Z2, R5, R1, R2 and R3 each has the same definition as described above, with an organometallic reagent; and then reacting the resulting product with pentafluoroiodobenzene.Type: GrantFiled: April 8, 2005Date of Patent: December 28, 2010Assignee: Eisai R&D Management Co., Ltd.Inventors: Shigeto Negi, Toshikazu Shimizu, Hiroshi Kuroda, Naoyuki Shimomura, Manabu Sasho, Yorihisa Hoshino, Manabu Kuboto
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Publication number: 20100280243Abstract: 4-(Substituted phenyl)hexahydropyrido[2,1-c][1,4]oxazin-6-one represented by formula (I) or a salt thereof is useful as an intermediate for the production of a bicyclic cinnamide compound which is an A? production inhibitor. 4-(Substituted phenyl)hexahydropyrido[2,1-c][1,4]oxazin-6-one or the salt thereof can be produced in an industrially advantageous manner by subjecting a compound represented by formula (II) or a salt thereof to an intramolecular condensation reaction.Type: ApplicationFiled: December 25, 2008Publication date: November 4, 2010Inventors: Akio Kayano, Mitsuo Nagai, Yorihisa Hoshino, Kazunori Wakasugi, Masaaki Matsuda, Atsushi Kamada, Minetaka Isomura, Yoshihiro Nishikawa, Seiji Yoshikawa, Daisuke Shimmyo
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Patent number: 7772249Abstract: The present invention provides a novel compound having an excellent corticotrophin-releasing-factor receptor antagonistic activity. That is, it provides a compound represented by the following formula or a salt thereof. Wherein R1 denotes a hydrogen atom, a C1-6 alkyl group, a C1-6 alkoxy group and the like; R2 denotes a halogen atom, a cyano group, a nitro group, a C1-10 alkyl group, a C2-10 alkenyl group, C2-10 alkynyl group and the like; R3 denotes a C6-14 aromatic hydrocarbon cyclic group or a 5- to 14-membered aromatic heterocyclic group, each of which may have a substituent; and X, Y and X are independent of each other and each denotes N or CR4 (wherein R4 denotes a hydrogen atom, a halogen atom, a cyano group, a nitro group, an optionally halogenated C1-6 alkyl group and the like) and, in this case, at least two of X, Y and Z denote CR4.Type: GrantFiled: March 3, 2009Date of Patent: August 10, 2010Assignee: Eisai R&D Management Co., Ltd.Inventors: Shigeki Hibi, Yoshinori Takahashi, Yorihisa Hoshino, Koichi Kikuchi, Motohiro Soejima, Tatsuya Yoshiuchi, Kogyoku Shin, Mutsuko Ono, Hisashi Shibata, Mitsuhiro Ino, Tetsuya Hirakawa
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Patent number: 7625925Abstract: Compounds represented by the general formula: [wherein R1 represents methoxy, ethyl, methylthio, etc., R2, R3 and R4 each represent hydrogen, a halogen, etc., R5 and R6 each represent —X5—X6—X7 (wherein X5 represents a single bond or —CO—, X6 represents a single bond, —NR3a, etc. and X7 and R3a each represent hydrogen, C1-10 alkyl, etc.), and Ar represents phenyl, pyridyl, etc.], salts thereof and hydrates of the foregoing.Type: GrantFiled: June 4, 2007Date of Patent: December 1, 2009Assignee: Eisai R&D Management Co., LtdInventors: Shigeki Hibi, Koichi Kikuchi, Yorihisa Hoshino, Motohiro Soejima, Tatsuya Yoshiuchi, Kogyoku Shin, Mutsuko Ono, Yoshinori Takahashi, Hisashi Shibata, Mitsuhiro Ino, Tetsuya Hirakawa
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Publication number: 20090181985Abstract: The present invention provides a novel compound having an excellent corticotrophin-releasing-factor receptor antagonistic activity. That is, it provides a compound represented by the following formula or a salt thereof. Wherein R1 denotes a hydrogen atom, a C1-6 alkyl group, a C1-6 alkoxy group and the like; R2 denotes a halogen atom, a cyano group, a nitro group, a C1-10 alkyl group, a C2-10 alkenyl group, C2-10 alkynyl group and the like; R3 denotes a C6-14 aromatic hydrocarbon cyclic group or a 5- to 14-membered aromatic heterocyclic group, each of which may have a substituent; and X, Y and X are independent of each other and each denotes N or CR4 (wherein R4 denotes a hydrogen atom, a halogen atom, a cyano group, a nitro group, an optionally halogenated C1-6 alkyl group and the like) and, in this case, at least two of X, Y and Z denote CR4.Type: ApplicationFiled: March 3, 2009Publication date: July 16, 2009Applicant: Eisai R&D Management Co., Ltd.Inventors: Shigeki Hibi, Yoshinori Takahashi, Yorihisa Hoshino, Koichi Kikuchi, Motohiro Soejima, Tatsuya Yoshiuchi, Kogyoku Shin, Matsuko Ono, Hisashi Shibata, Mitsuhiro Ino, Tetsuya Hirakawa
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Publication number: 20080076943Abstract: A compound represented by the formula: [wherein R1 is methoxy, methylthio, ethyl, etc.; R5 and R6 are each independently cyclopropylmethyl, (4-tetrahydropyranyl)methyl, etc.; and two of R40, R41 and R42 are C1-6 alkoxy while the remaining one is methoxymethyl, etc.], a salt thereof, or a hydrate of the foregoing. This compound has excellent antagonism against corticotropin-releasing factor receptor.Type: ApplicationFiled: September 20, 2007Publication date: March 27, 2008Inventors: Shigeki HIBI, Yorihisa HOSHINO, Koichi KIKUCHI, Kogyoku SHIN, Yoshinori TAKAHASHI, Masae FUJISSAWA, Hisashi SHIBATA, Mitsuhiro INO
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Patent number: 7323569Abstract: A compound represented by the formula: [wherein R1 is methoxy, methylthio, ethyl, etc.; R5 and R6 are each independently cyclopropylmethyl, (4-tetrahydropyranyl)methyl, etc.; and two of R40, R41 and R42 are C1-6 alkoxy while the remaining one is methoxymethyl, etc.], a salt thereof, or a hydrate of the foregoing. This compound has excellent antagonism against corticotropin-releasing factor receptor.Type: GrantFiled: October 22, 2003Date of Patent: January 29, 2008Assignee: Eisai R&D Management Co., Ltd.Inventors: Shigeki Hibi, Yorihisa Hoshino, Koichi Kikuchi, Kogyoku Shin, Yoshinori Takahashi, Masae Fujisawa, Hisashi Shibata, Mitsuhiro Ino
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Publication number: 20070249663Abstract: Compounds represented by the general formula: [wherein R1 represents methoxy, ethyl, methylthio, etc., R2, R3 and R4 each represent hydrogen, a halogen, etc., R5 and R6 each represent —X5—X6—X7 (wherein X5 represents a single bond or —CO—, X6 represents a single bond, —NR3a, etc. and X7 and R3a each represent hydrogen, C1-10 alkyl, etc.), and Ar represents phenyl, pyridyl, etc.], salts thereof and hydrates of the foregoing.Type: ApplicationFiled: June 4, 2007Publication date: October 25, 2007Inventors: Shigeki Hibi, Koichi Kikuchi, Yorihisa Hoshino, Motohiro Soejima, Tatsuya Yoshiuchi, Kogyoku Shin, Mutsuko Ono, Yoshinori Takahashi, Hisashi Shibata, Mitsuhiro Ino, Tetsuya Hirakawa
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Patent number: 7285666Abstract: Compounds represented by the general formula: [wherein R1 represents methoxy, ethyl, methylthio, etc., R2, R3 and R4 each represent hydrogen, a halogen, etc., R5 and R6 each represent —X5—X6—X7 (wherein X5 represents a single bond or —CO—, X6 represents a single bond, —NR3a, etc. and X7 and R3a each represent hydrogen, C1-10 alkyl, etc.), and Ar represents phenyl, pyridyl, etc.], salts thereof and hydrates of the foregoing.Type: GrantFiled: June 5, 2006Date of Patent: October 23, 2007Assignee: Eisai R&D Management Co., Ltd.Inventors: Shigeki Hibi, Koichi Kikuchi, Yorihisa Hoshino, Motohiro Soejima, Tatsuya Yoshiuchi, Kogyoku Shin, Mutsuko Ono, Yoshinori Takahashi, Hisashi Shibata, Mitsuhiro Ino, Tetsuya Hirakawa
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Publication number: 20070191613Abstract: An object of the invention is to find out intermediates usful for the synthesis of pyrazol-fused ring derivatives (such as 7-phenylpyrazolo[1,5-a]pyridine derivatives) and a method for producing the same. A method for producing compound represented by the general formula (II), wherein Z1 and Z2 each independently represents a methine group or a nitrogen atom; R1 represents an ethyl group or the like; R5 represents a hydrogen atom or the like; R2 and R3 each independently represents a C1-6 alkyl group or the like, salts thereof, or solvates of both, comprising the step of: reacting a compound represented by the general formula (I), wherein Z1, Z2, R5, R1, R2 and R3 each has the same definition as described above, with an organometallic reagent; and then reacting the resulting product with pentafluoroiodobenzene.Type: ApplicationFiled: April 8, 2005Publication date: August 16, 2007Inventors: Shigeto Negi, Toshikazu Shimizu, Hiroshi Kuroda, Naoyuki Shimomura, Manabu Sasho, Yorihisa Hoshino, Manabu Kubota
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Patent number: 7176216Abstract: A compound represented by the formula: [wherein R1 is methoxy, methylthio, ethyl, etc.; R5 and R6 are each independently cyclopropylmethyl, (4-tetrahydropyranyl)methyl, etc.; and two of R40, R41 and R42 are C1-6 alkoxy while the remaining one is methoxymethyl, etc.], a salt thereof, or a hydrate of the foregoing. This compound has excellent antagonism against corticotropin-releasing factor receptor.Type: GrantFiled: October 21, 2003Date of Patent: February 13, 2007Assignee: Eisai Co., Ltd.Inventors: Shigeki Hibi, Yorihisa Hoshino, Koichi Kikuchi, Kogyoku Shin, Yoshinori Takahashi, Masae Fujisawa, Hisashi Shibata, Mitsuhiro Ino
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Publication number: 20060235011Abstract: A compound represented by the formula: [wherein R1 is methoxy, methylthio, ethyl, etc.; R5 and R6 are each independently cyclopropylmethyl, (4-tetrahydropyranyl)methyl, etc.; and two of R40, R41 and R42 are C1-6 alkoxy while the remaining one is methoxymethyl, etc.], a salt thereof, or a hydrate of the foregoing. This compound has excellent antagonism against corticotropin-releasing factor receptor.Type: ApplicationFiled: October 22, 2003Publication date: October 19, 2006Applicant: Eisai Co.Ltd.Inventors: Shigeki Hibi, Yorihisa Hoshino, Koichi Kikuchi, Kyogyoku Shin, Yoshinori Takahashi, Masae Fujisawa, Hisashi Shibata, Mitsuhiro Ino
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Publication number: 20060217348Abstract: Compounds represented by the general formula: [wherein R1 represents methoxy, ethyl, methylthio, etc., R2, R3 and R4 each represent hydrogen, a halogen, etc., R5 and R6 each represent —X5—X6—X7 (wherein X5 represents a single bond or —CO—, X6 represents a single bond, —NR3a, etc. and X7 and R3a each represent hydrogen, C1-10 alkyl, etc.), and Ar represents phenyl, pyridyl, etc.], salts thereof and hydrates of the foregoing.Type: ApplicationFiled: June 5, 2006Publication date: September 28, 2006Inventors: Shigeki Hibi, Koichi Kikuchi, Yorihisa Hoshino, Motohiro Soejima, Tatsuya Yoshiuchi, Kogyoku Shin, Mutsuko Ono, Yoshinori Takahashi, Hisashi Shibata, Mitsuhiro Ino, Tetsuya Hirakawa
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Publication number: 20060211696Abstract: The present invention provides a novel compound having an excellent corticotrophin-releasing-factor receptor antagonistic activity. That is, it provides a compound represented by the following formula or a salt thereof. Wherein R1 denotes a hydrogen atom, a C1-6 alkyl group, a C1-6 alkoxy group and the like; R2 denotes a halogen atom, a cyano group, a nitro group, a C1-10 alkyl group, a C2-10 alkenyl group, C2-10 alkynyl group and the like; R3 denotes a C6-14 aromatic hydrocarbon cyclic group or a 5- to 14-membered aromatic heterocyclic group, each of which may have a substituent; and X, Y and X are independent of each other and each denotes N or CR4 (wherein R4 denotes a hydrogen atom, a halogen atom, a cyano group, a nitro group, an optionally halogenated C1-6 alkyl group and the like) and, in this case, at least two of X, Y and Z denote CR4.Type: ApplicationFiled: June 1, 2006Publication date: September 21, 2006Inventors: Shigeki HIBI, Yoshinori Takahashi, Yorihisa Hoshino, Koichi Kikuchi, Motohiro Soejima, Tatsuya Yoshiuchi, Kogyoku Shin, Mutsuko Ono, Hisashi Shibata, Mitsuhiro Ino, Tetsuya Hirakawa
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Patent number: 7091215Abstract: Compounds represented by the general formula: [wherein R1 represents methoxy, ethyl, methylthio, etc., R2, R3 and R4 each represent hydrogen, a halogen, etc., R5 and R6 each represent —X5—X6—X7 (wherein X5 represents a single bond or —CO—, X6 represents a single bond, —NR3a, etc. and X7 and R3a each represent hydrogen, C1-10 alkyl, etc.), and Ar represents phenyl, pyridyl, etc.], salts thereof and hydrates of the foregoing.Type: GrantFiled: April 25, 2002Date of Patent: August 15, 2006Assignee: Eisai Co., Ltd.Inventors: Shigeki Hibi, Koichi Kikuchi, Yorihisa Hoshino, Motohiro Soejima, Tatsuya Yoshiuchi, Kogyoku Shin, Mutsuko Ono, Yoshinori Takahashi, Hisashi Shibata, Mitsuhiro Ino, Tetsuya Hirakawa
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Patent number: 7078405Abstract: The present invention provides a novel compound having an excellent corticotrophin-releasing-factor receptor antagonistic activity. That is, it provides a compound represented by the following formula or a salt thereof. Wherein R1 denotes a hydrogen atom, a C1-6 alkyl group, a C1-6 alkoxy group and the like; R2 denotes a halogen atom, a cyano group, a nitro group, a C1-10 alkyl group, a C2-10 alkenyl group, C2-10 alkynyl group and the like; R3 denotes a C6-14 aromatic hydrocarbon cyclic group or a 5- to 14-membered aromatic heterocyclic group, each of which may have a substituent; and X, Y and X are independent of each other and each denotes N or CR4 (wherein R4 denotes a hydrogen atom, a halogen atom, a cyano group, a nitro group, an optionally halogenated C1-6 alkyl group and the like) and, in this case, at least two of X, Y and Z denote CR4.Type: GrantFiled: February 8, 2002Date of Patent: July 18, 2006Assignee: Eisai Co., Ltd.Inventors: Shigeki Hibi, Yoshinori Takahashi, Yorihisa Hoshino, Koichi Kikuchi, Motohiro Soejima, Tatsuya Yoshiuchi, Kogyoku Shin, Mutsuko Ono, Hisashi Shibata, Mitsuhiro Ino
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Patent number: 6995163Abstract: The present invention provides a novel compound having an excellent corticotrophin-releasing-factor receptor antagonistic activity. That is, it provides a compound represented by the following formula, a pharmacologically acceptable salt thereof or hydrates thereof, wherein R2 is a hydrogen atom, etc.; R3 is a hydrogen atom, etc.; M? represents a hydrogen atom, a halogen atom or a C1-6 alkyl group; R7? represents a hydrogen atom or a C1-6 alkyl group; and W? represents a phenyl group, pyridyl group, thienyl group, or furyl group, each being optionally substituted; and a pharmacologically acceptable salt thereof or hydrates thereof.Type: GrantFiled: August 2, 2004Date of Patent: February 7, 2006Assignee: Eisai Co., Ltd.Inventors: Shigeki Hibi, Yorihisa Hoshino, Tatsuya Yoshiuchi, Kogyoku Shin, Kouichi Kikuchi, Motohiro Soejima, Mutsuko Tabata, Yoshinori Takahashi, Hisashi Shibata, Takayuki Hida, Tetsuya Hirakawa, Mitsuhiro Ino
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Patent number: 6951865Abstract: The present invention provides a novel compound having an excellent corticotrophin-releasing-factor receptor antagonistic activity. That is, it provides a compound represented by the following formula, a pharmacologically acceptable salt thereof or hydrates thereof. Wherein A, B and D are the same as or different from each other and each represents a group represented by the formula —(CR1R2)m— (wherein R1 and R2 are the same as or different from each other and each represents a C1-6 alkyl group etc.), —NR3— (wherein R3 represetns hydrogen etc.) etc.; E and G are the same as or different from each other and each represents a group represented by the formula —(CR6R7)p— (wherein R6and R7 are the same as or different from each other and each represents hydrogen etc.; and p represents an integer of 0, 1 or 2); J represents a carbon atom or nitrogen atom, each substituted with C1-6 alkyl group optionally substituted with a halogen atom, etc.Type: GrantFiled: December 13, 2000Date of Patent: October 4, 2005Assignee: Eisai Co., Ltd.Inventors: Shigeki Hibi, Yorihisa Hoshino, Tatsuya Yoshiuchi, Kogyoku Shin, Kouichi Kikuchi, Motohiro Soejima, Mutsuko Tabata, Yoshinori Takahashi, Hisashi Shibata, Tetsuya Hirakawa
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Patent number: RE39112Abstract: The present invention provides a preventive or therapeutic agent of a new type for diabetes mellitus and diabetic complications on the basis of an adenosine A2 receptor antagonist action. A purine compound represented by the formula (I), its pharmacologically acceptable salt or hydrates thereof has an adenosine A2 receptor antagonistic action and is useful for prevention or therapy of diabetes mellitus and diabetic complications. In addition, adenosine A2 receptor antagonists having different structures from those of the compounds described above, for example KW6002, are also effective for prevention or therapy of diabetes mellitus and diabetic complications. In the formula, W is —CH2CH2—, or —CH?CH— or —C?C—; R1 is: (in the formula, X is hydrogen atom, hydroxyl group, a lower alkyl group, a lower alkoxy group, etc.; and R5 and R6 are the same as or different from each other and each represents hydrogen atom, a lower alkyl group, a cycloalkyl group, etc.) and the like; R2 is an amino group, etc.Type: GrantFiled: December 24, 1998Date of Patent: May 30, 2006Assignee: Eisai Co., Ltd.Inventors: Osamu Asano, Hitoshi Harada, Yorihisa Hoshino, Seiji Yoshikawa, Takashi Inoue, Tatsuo Horizoe, Nobuyuki Yasuda, Kaya Ohashi, Junsaku Nagaoka, Manabu Murakami, Seiichi Kobayashi