Patents by Inventor Hiroaki Shiohara

Hiroaki Shiohara 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).

  • Patent number: 7923462
    Abstract: The present invention provides compounds represented by general formula (I): or pharmaceutical acceptable salts thereof, wherein R1 and R2 are each hydrogen, lower acyl, lower alkoxycarbonyl or the like; R3 is halo-lower alkyl, lower acyl, halo-lower alkylcarbonyl, cycloalkylcarbonyl, optionally substituted arylcarbonyl, lower alkoxycarbonyl or the like; R4 is lower alkyl, halo-lower alkyl, cycloalkyl, lower alkoxy-lower alkyl or the like, which exhibit potent COMT inhibitory activities. The present invention also provides pharmaceutical compositions containing said compound, and uses thereof.
    Type: Grant
    Filed: December 22, 2008
    Date of Patent: April 12, 2011
    Assignee: Kissei Pharmaceutical Co., Ltd.
    Inventors: Takehiro Ishikawa, Hitoshi Inoue, Satoko Kobayashi, Masako Yoshida, Hiroaki Shiohara, Yasunori Ueno, Nobuyuki Tanaka
  • Publication number: 20100280083
    Abstract: The present invention provides compounds represented by general formula (I): or pharmaceutical acceptable salts thereof, wherein R1 and R2 are each hydrogen, lower acyl, lower alkoxycarbonyl or the like; R3 is halo-lower alkyl, lower acyl, halo-lower alkylcarbonyl, cycloalkylcarbonyl, optionally substituted arylcarbonyl, lower alkoxycarbonyl or the like; R4 is lower alkyl, halo-lower alkyl, cycloalkyl, lower alkoxy-lower alkyl or the like, which exhibit potent COMT inhibitory activities. The present invention also provides pharmaceutical compositions containing said compound, and uses thereof.
    Type: Application
    Filed: December 22, 2008
    Publication date: November 4, 2010
    Applicant: Kissei Pharmaceutical Co., Ltd.
    Inventors: Takehiro Ishikawa, Hitoshi Inoue, Satoko Kobayashi, Masako Yoshida, Hiroaki Shiohara, Yasunori Ueno, Nobuyuki Tanaka
  • Publication number: 20090239860
    Abstract: The present invention provides compounds represented by general formula (I): or pharmaceutical acceptable salts thereof, wherein R1 is hydrogen or lower alkyl; R2 is lower alkyl, halo-lower alkyl, cycloalkyl, heterocycloalkyl, aryl, aralkyl, arylalkenyl, aryloxy-lower alkyl, heteroaryl, heteroaryl-lower alkyl, etc; R3, R4, R5 and R6 are each hydrogen, halogen, cyano, lower alkyl, halo-lower alkyl, lower alkoxy, hydroxy, aryl, etc; provided that at least one of R3, R4, R5 and R6 is other than hydrogen. Compound (I) of the present invention shows a potent adenosine A2A receptor antagonistic activity, and are useful for treating or preventing a disease mediated by adenosine A2A receptors such as motor function disorders, depression, anxiety disorders, cognitive function disorders, cerebral ischemia disorders, restless legs syndrome and the like.
    Type: Application
    Filed: January 21, 2005
    Publication date: September 24, 2009
    Inventors: Tetsuya Nakamura, Hiroaki Shiohara, Yoshihiro Terao, Satoko Nakayama, Keiji Miyazawa, Hideki Ohnota
  • Patent number: 7589126
    Abstract: The present invention relates to a 5-amidino-2-hydroxybenzenesulfonamide derivative represented by the general formula: wherein R1 is a hydrogen atom or an optionally substituted lower alkyl group; R2 is a di(lower alkyl)amino group, a lower alkyl group, a cycloalkyl group, an optionally substituted aryl group, an optionally substituted heterocycloalkyl group, or an optionally substituted aromatic heterocyclic group; T is an oxygen atom, a sulfur atom, a sulfonyl group etc.; Q is a hydrogen atom or an optionally substituted lower alkyl group; and Z is a hydrogen atom, a hydroxy group etc., or a pharmaceutically acceptable salt thereof, which exert a potent and selective activated blood coagulation factor X inhibitory activity and is useful as an agent for the prevention or treatment of a disease occurred associating an activated blood coagulation factor X, a pharmaceutical composition comprising the same, a pharmaceutical use thereof and an intermediate thereof.
    Type: Grant
    Filed: October 27, 2006
    Date of Patent: September 15, 2009
    Assignee: Kissei Pharmaceutical Co., Ltd.
    Inventors: Kosuke Okazaki, Masahiko Uchida, Harunobu Mukaiyama, Hiroaki Kobayashi, Yuichiro Kai, Hideki Takeuchi, Kenji Yokoyama, Yoshihiro Terao, Yuji Hoyano, Hiroaki Shiohara, Norihiko Kikuchi
  • Patent number: 7566699
    Abstract: The present invention provides fused heterocyclic derivatives represented by the general formula: wherein R1 represents H, halogen, OH, etc.; R2 represents H, halogen or an alkyl group; R3 and R4 represent H, OH, halogen, etc.; Q represents alkylene, etc.; ring A represents aryl or heteroaryl; and G represents or pharmaceutically acceptable salts thereof, or prodrugs thereof, which exhibit an excellent inhibitory activity in human SGLT and are useful as agents for the prevention or treatment of a disease associated with hyperglycemia such as diabetes, postprandial hyperglycemia, impaired glucose tolerance, diabetic complications or obesity, pharmaceutical compositions comprising the same, and pharmaceutical uses thereof.
    Type: Grant
    Filed: March 24, 2004
    Date of Patent: July 28, 2009
    Assignee: Kissei Pharmaceutical Co., Ltd.
    Inventors: Nobuhiko Fushimi, Shigeru Yonekubo, Hideyuki Muranaka, Hiroaki Shiohara, Hirotaka Teranishi, Kazuo Shimizu, Fumiaki Ito, Masayuki Isaji
  • Patent number: 7230031
    Abstract: The present invention provides a compound represented by general formula (I): or pharmaceutically acceptable salts thereof, wherein W is O, S(O)m, CH2 and the like; R1 is halogen, lower alkyl, halo-lower alkyl, CN and the like; R3 is hydrogen and the like; R4 is hydrogen, halogen, alkyl, halo-lower alkyl, substituted alkyl, aryl, aralkyl, alkoxy, substituted alkoxy, alkanoyl, aroyl, —CONR7(R8), —S(O)mR9, —SO2NR7(R8) and the like; R5 is hydrogen, halogen, alkyl, substituted alkyl and the like; A is —N(R6)CO—A1—COR10 and the like; pharmaceutical compositions containing them and their uses, which have a high affinity to human thyroid hormone receptors, in particular human thyroid hormone receptor ?.
    Type: Grant
    Filed: January 28, 2003
    Date of Patent: June 12, 2007
    Assignee: Kissei Pharmaceutical Co., Ltd.
    Inventors: Hiroaki Shiohara, Tetsuya Nakamura, Norihiko Kikuchi, Tomonaga Ozawa, Makio Kitazawa
  • Patent number: 7217832
    Abstract: The present invention relates to a 5-amidino-2-hydroxybenzenesulfonamide derivative represented by the general formula: wherein R1 is a hydrogen atom or an optionally substituted lower alkyl group; R2 is a di(lower alkyl)amino group, a lower alkyl group, a cycloalkyl group, an optionally substituted aryl group, an optionally substituted heterocycloalkyl group, or an optionally substituted aromatic heterocyclic group; T is an oxygen atom, a sulfur atom, a sulfonyl group etc.; Q is a hydrogen atom or an optionally substituted lower alkyl group; and Z is a hydrogen atom, a hydroxy group etc., or a pharmaceutically acceptable salt thereof, which exert a potent and selective activated blood coagulation factor X inhibitory activity and is useful as an agent for the prevention or treatment of a disease occurred associating an activated blood coagulation factor X, a pharmaceutical composition comprising the same, a pharmaceutical use thereof and an intermediate thereof.
    Type: Grant
    Filed: February 23, 2006
    Date of Patent: May 15, 2007
    Assignee: Kissei Pharmaceutical Co., Ltd.
    Inventors: Kosuke Okazaki, Masahiko Uchida, Harunobu Mukaiyama, Hiroaki Kobayashi, Yuichiro Kai, Hideki Takeuchi, Kenji Yokoyama, Yoshihiro Terao, Yuji Hoyano, Hiroaki Shiohara, Norihiko Kikuchi
  • Patent number: 7217697
    Abstract: The present invention provides glucopyranosyloxypyrazole derivatives represented by the general formula: wherein R1 is a hydrogen atom or a hydroxyalkyl group; one of Q and T is a group represented by the general formula; the other is an optionally substituted alkyl group or a cycloalkyl group; and R2 is a halogen atom, a hydroxy group, an optionally substituted alkyl group, an optionally substituted alkoxy group, an alkylthio group, a group of the general formula: -A-R3 wherein A is a single bond, an oxygen atom, a methylene group, an ethylene group, —OCH2— or —CH2O—; and R3 is a cycloalkyl group, a heterocycloalkyl group, an optionally substituted aryl group, an optionally substituted tiazolyl group or an optionally substituted pyridyl group, pharmaceutically acceptable salts thereof or prodrugs thereof, which exert an excellent inhibitory activity in human SGLT1, and therefore are useful as drugs for the prevention or treatment of a disease associated with hyperglycemia such as diabetes, diabetic
    Type: Grant
    Filed: May 27, 2002
    Date of Patent: May 15, 2007
    Assignee: Kissei Pharmaceutical Co., Ltd.
    Inventors: Hiroaki Shiohara, Hideki Fujikura, Nobuhiko Fushimi, Fumiaki Ito, Masayuki Isaji
  • Publication number: 20070105829
    Abstract: The present invention relates to a 5-amidino-2-hydroxybenzenesulfonamide derivative represented by the general formula: wherein R1 is a hydrogen atom or an optionally substituted lower alkyl group; R2 is a di(lower alkyl)amino group, a lower alkyl group, a cycloalkyl group, an optionally substituted aryl group, an optionally substituted heterocycloalkyl group, or an optionally substituted aromatic heterocyclic group; T is an oxygen atom, a sulfur atom, a sulfonyl group etc.; Q is a hydrogen atom or an optionally substituted lower alkyl group; and Z is a hydrogen atom, a hydroxy group etc., or a pharmaceutically acceptable salt thereof, which exert a potent and selective activated blood coagulation factor X inhibitory activity and is useful as an agent for the prevention or treatment of a disease occurred associating an activated blood coagulation factor X, a pharmaceutical composition comprising the same, a pharmaceutical use thereof and an intermediate thereof.
    Type: Application
    Filed: October 27, 2006
    Publication date: May 10, 2007
    Inventors: Kosuke OKAZAKI, Masahiko Uchida, Harunobu Mukaiyama, Hiroaki Kobayashi, Yuichiro Kai, Hideki Takeuchi, Kenji Yokoyama, Yoshihiro Terao, Yuji Hoyano, Hiroaki Shiohara, Norihiko Kikuchi
  • Patent number: 7208524
    Abstract: The present invention relates to a 5-amidino-2-hydroxybenzenesulfonamide derivative represented by the general formula: wherein R1 is a hydrogen atom or an optionally substituted lower alkyl group; R2 is a di(lower alkyl)amino group, a lower alkyl group, a cycloalkyl group, an optionally substituted aryl group, an optionally substituted heterocycloalkyl group, or an optionally substituted aromatic heterocyclic group; T is an oxygen atom, a sulfur atom, a sulfonyl group etc.; Q is a hydrogen atom or an optionally substituted lower alkyl group; and Z is a hydrogen atom, a hydroxy group etc., or a pharmaceutically acceptable salt thereof, which exert a potent and selective activated blood coagulation factor X inhibitory activity and is useful as an agent for the prevention or treatment of a disease occurred associating an activated blood coagulation factor X, a pharmaceutical composition comprising the same, a pharmaceutical use thereof and an intermediate thereof.
    Type: Grant
    Filed: October 2, 2001
    Date of Patent: April 24, 2007
    Assignee: Kissei Pharmaceutical Co., Ltd.
    Inventors: Kosuke Okazaki, Masahiko Uchida, Harunobu Mukaiyama, Hiroaki Kobayashi, Yuichiro Kai, Hideki Takeuchi, Kenji Yokoyama, Yoshihiro Terao, Yuji Hoyano, Hiroaki Shiohara, Norihiko Kikuchi
  • Publication number: 20060247179
    Abstract: The present invention provides fused heterocyclic derivatives represented by the general formula: wherein R1 represents H, halogen, OH, etc.; R2 represents H, halogen or an alkyl group; R3 and R4 represent H, OH, halogen, etc.; Q represents alkylene, etc.; ring A represents aryl or heteroaryl; and G represents , or pharmaceutically acceptable salts thereof, or prodrugs thereof, which exhibit an excellent inhibitory activity in human SGLT and are useful as agents for the prevention or treatment of a disease associated with hyperglycemia such as diabetes, postprandial hyperglycemia, impaired glucose tolerance, diabetic complications or obesity, pharmaceutical compositions comprising the same, and pharmaceutical uses thereof.
    Type: Application
    Filed: March 24, 2004
    Publication date: November 2, 2006
    Inventors: Nobuhiko Fushimi, Shigeru Yonekubo, Hideyuki Muranaka, Hiroaki Shiohara, Hirotaka Teranishi, Kazuo Shimizu, Fumiaki Ito, Masayuki Isaji
  • Publication number: 20060205812
    Abstract: The present invention relates to a 5-amidino-2-hydroxybenzenesulfonamide derivative represented by the general formula: wherein R1 is a hydrogen atom or an optionally substituted lower alkyl group; R2 is a di(lower alkyl)amino group, a lower alkyl group, a cycloalkyl group, an optionally substituted aryl group, an optionally substituted heterocycloalkyl group, or an optionally substituted aromatic heterocyclic group; T is an oxygen atom, a sulfur atom, a sulfonyl group etc.; Q is a hydrogen atom or an optionally substituted lower alkyl group; and Z is a hydrogen atom, a hydroxy group etc., or a pharmaceutically acceptable salt thereof, which exert a potent and selective activated blood coagulation factor X inhibitory activity and is useful as an agent for the prevention or treatment of a disease occurred associating an activated blood coagulation factor X, a pharmaceutical composition comprising the same, a pharmaceutical use thereof and an intermediate thereof.
    Type: Application
    Filed: February 23, 2006
    Publication date: September 14, 2006
    Inventors: Kosuke Okazaki, Masahiko Uchida, Harunobu Mukaiyama, Hiroaki Kobayashi, Yuichiro Kai, Hideki Takeuchi, Kenji Yokoyama, Yoshihiro Terao, Yuji Hoyano, Hiroaki Shiohara, Norihiko Kikuchi
  • Publication number: 20060116361
    Abstract: The present invention relates to a 5-amidino-2-hydroxybenzenesulfonamide derivative represented by the general formula: wherein R1 is a hydrogen atom or an optionally substituted lower alkyl group; R2 is a di(lower alkyl)amino group, a lower alkyl group, a cycloalkyl group, an optionally substituted aryl group, an optionally substituted heterocycloalkyl group, or an optionally substituted aromatic heterocyclic group; T is an oxygen atom, a sulfur atom, a sulfonyl group etc.; Q is a hydrogen atom or an optionally substituted lower alkyl group; and Z is a hydrogen atom, a hydroxy group etc., or a pharmaceutically acceptable salt thereof, which exert a potent and selective activated blood coagulation factor X inhibitory activity and is useful as an agent for the prevention or treatment of a disease occurred associating an activated blood coagulation factor X, a pharmaceutical composition comprising the same, a pharmaceutical use thereof and an intermediate thereof.
    Type: Application
    Filed: October 2, 2001
    Publication date: June 1, 2006
    Inventors: Kosuke Okazaki, Masahiko Uchida, Harunobu Mukaiyama, Hiroaki Kobayashi, Yuichiro Kai, Hideki Takeuchi, Kenji Yokoyama, Yoshihiro Terao, Yuji Hoyano, Hiroaki Shiohara, Norihiko Kikuchi
  • Publication number: 20050085541
    Abstract: The present invention provides a compound represented by general formula (I): or pharmaceutically acceptable salts thereof, wherein W is O, S(O)m, CH2 and the like; R1 is halogen, lower alkyl, halo-lower alkyl, CN and the like; R3 is hydrogen and the like; R4 is hydrogen, halogen, alkyl, halo-lower alkyl, substituted alkyl, aryl, aralkyl, alkoxy, substituted alkoxy, alkanoyl, aroyl, —CONR7(R8), —S(O)mR9, —SO2NR7(R8) and the like; R5 is hydrogen, halogen, alkyl, substituted alkyl and the like; A is —N(R6)CO-A1-COR10 and the like; pharmaceutical compositions containing them and their uses, which have a high affinity to human thyroid hormone receptors, in particular human thyroid hormone receptor ?.
    Type: Application
    Filed: January 28, 2003
    Publication date: April 21, 2005
    Inventors: Hiroaki Shiohara, Tetsuya Nakamura, Norihiko Kikuchi, Tomonaga Ozawa, Makio Kitazawa
  • Publication number: 20040176308
    Abstract: The present invention provides glucopyranosyloxypyrazole derivatives represented by the general formula: 1
    Type: Application
    Filed: May 6, 2004
    Publication date: September 9, 2004
    Inventors: Hiroaki Shiohara, Hideki Fujikura, Nobuhiko Fushimi, Fumiaki Ito, Masayuki Isaji