Patents by Inventor Hideki Fujikura

Hideki Fujikura 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: 7084123
    Abstract: The present invention provides glucopyranosyloxypyrazole derivatives represented by the general formula: wherein R represents a hydrogen atom, a lower alkyl group or a group forming a prodrug: one of Q and T represents a group represented by the general formula: (wherein P represents a hydrogen atom or a group forming a prodrug), while the other represents a lower alkyl group or a halo(lower alkyl) group; R2 represents a hydrogen atom, a lower alkyl group, a lower alkoxy group, a lower alkylthio group, a halo(lower alkyl) group or a halogen atom; and with the proviso that P does not represent a hydrogen atom when R represents a hydrogen atom or a lower alkyl group, or pharmaceutically acceptable salts thereof, which exert an inhibitory activity in human SGLT2 and have an improved oral absorption, and therefore are useful as agents for the prevention or treatment of a disease associated with hyperglycemia such as diabetes, diabetic complications or obesity, and pharmaceutically acceptable salts thereo
    Type: Grant
    Filed: December 25, 2001
    Date of Patent: August 1, 2006
    Assignee: Kissei Pharmaceutical Co., Ltd.
    Inventors: Hideki Fujikura, Nobuhiko Fushimi, Toshihiro Nishimura, Takeshi Nakabayashi, Masayuki Isaji
  • Publication number: 20060142209
    Abstract: The present invention provides glucopyranosyloxypyrazole derivatives represented by the general formula: wherein one of Q and T represents a group represented by the general formula: while the other represents a lower alkyl group or a halo(lower alkyl) group; R1 represents a hydrogen atom, an optionally substituted lower alkyl group, a lower alkenyl group, a cyclic lower alkyl group, etc.; R2 represents a hydrogen atom, an optionally substituted lower alkyl group, a lower alkoxy group, a lower alkenyl group, a cyclic lower alkyl group, a cyclic lower alkoxy group, etc., which exert an excellent inhibitory activity in human SGLT2, and therefore are useful as drugs for the prevention or treatment of a disease associated with hyperglycemia such as diabetes, diabetic complications or obesity, pharmaceutically acceptable salts thereof or prodrugs thereof, production intermediates thereof and pharmaceutical uses thereof.
    Type: Application
    Filed: February 22, 2006
    Publication date: June 29, 2006
    Inventors: Toshihiro Nishimura, Nobuhiko Fushimi, Hideki Fujikura, Kenji Katsuno, Yoshimitsu Komatsu, Masayuki Isaji
  • Publication number: 20060128635
    Abstract: The present invention provides pyrazole derivatives represented by the general formula: wherein R1 represents H, an optionally substituted C1-6 alkyl group etc.; one of Q and T represents a group selected from the following groups: and the other represents —(CH2)n—Ar wherein Ar represents an optionally substituted C6-10 aryl group or an optionally substituted C1-9 heteroaryl group; and n represents an integral number from 0 to 2, an optionally substituted C1-6 alkoxyl group, an optionally substituted amino group, an optionally substituted C2-9 heterocycloalkyl group or an optionally substituted heterocycle-fused phenyl group; R represents an optionally substituted C3-8 cycloalkyl group, an optionally substituted C6-10 aryl group etc.
    Type: Application
    Filed: September 30, 2003
    Publication date: June 15, 2006
    Inventors: Hideki Fujikura, Norihiko Kikuchi, Shigeki Tazawa, Tokuhisa Yamato, Masayuki Isaji
  • Patent number: 7056892
    Abstract: The present invention relates to glucopyranosyloxypyrazole derivatives represented by the general formula: wherein R1 represents a hydrogen atom or a lower alkyl group; one of Q1 and T1 represents a group represented by the general formula: while the other represents a lower alkyl group or a halo(lower alkyl) group; and R2 represents a hydrogen atom, a lower alkyl group, a lower alkoxy group, a lower alkylthio group, a halo(lower alkyl) group or a halogen atom, or pharmaceutically acceptable salts thereof, which have an inhibitory activity in human SGLT2 and are useful as agents for the prevention or treatment of diabetes, diabetic complications or obesity, and to pharmaceutical compositions comprising the same and intermediates thereof.
    Type: Grant
    Filed: July 27, 2005
    Date of Patent: June 6, 2006
    Assignee: Kissei Pharmaceutical Co., Ltd.
    Inventors: Hideki Fujikura, Toshihiro Nishimura, Kenji Katsuno, Masahiro Hiratochi, Akira Iyobe, Minoru Fujioka, Masayuki Isaji
  • Patent number: 7053060
    Abstract: The present invention relates to glucopyranosyloxybenzylbenzene derivatives represented by the general formula: wherein R1 represents a hydrogen atom, a hydroxy group, a substituted or unsubstituted amino group, a carbamoyl group, a substituted or unsubstituted (lower alkyl) group, a substituted or unsubstituted (lower alkoxy) group etc.; R2 represents a hydrogen atom or a lower alkyl group; and R3 represents a substituted or unsubstituted (lower alkyl) group, a substituted or unsubstituted (lower alkoxy) group, a substituted or unsubstituted (lower alkylthio) group etc., or pharmaceutically acceptable salts thereof, which have an inhibitory activity in human SGLT2 and are useful as agents for the prevention or treatment of a disease associated with hyperglycemia such as diabetes, diabetic complication or obesity, pharmaceutical compositions comprising the same and intermediates thereof.
    Type: Grant
    Filed: November 20, 2001
    Date of Patent: May 30, 2006
    Assignee: Kissei Pharmaceutical Co., Ltd.
    Inventors: Hideki Fujikura, Toshihiro Nishimura, Nobuhiko Fushimi, Kazuya Tatani, Norihiko Kikuchi, Kenji Katsuno, Masayuki Isaji
  • Patent number: 7045665
    Abstract: The present invention relates to benzylphenol derivatives represented by the general formula: wherein R11 represents a hydrogen atom or a protected hydroxy(lower alkyl) group; and R12 represents a lower alkyl group, a lower alkoxy group, a lower alkylthio group, a protected hydroxy(lower alkyl) group, a protected hydroxy(lower alkoxy) group, a protected hydroxy(lower alkylthio) group, a lower alkoxy-substituted (lower alkyl) group, a lower alkoxy-substituted (lower alkoxy) group or a lower alkoxy-substituted (lower alkylthio) group; with the proviso that R12 is not a methyl group, an ethyl group, an isopropyl group, a tert-butyl group or a methoxy group when R11 is a hydrogen atom, or a salt thereof, which are used as intermediates for making glucopyranosyloxybenzylbenzene compounds having inhibitory activity in human SGLT2 and are useful in treating diseases associated with hyperglycemia, such as diabetes.
    Type: Grant
    Filed: October 7, 2004
    Date of Patent: May 16, 2006
    Assignee: Kissei Pharmaceutical Co., Ltd.
    Inventors: Hideki Fujikura, Nobuhiko Fushimi, Toshihiro Nishimura, Kazuya Tatani, Kenji Katsuno, Masahiro Hiratochi, Yoshiki Tokutake, Masayuki Isaji
  • Publication number: 20060094667
    Abstract: The present invention provides glucopyranosyloxypyrazole derivatives represented by the general formula: wherein R represents a hydrogen atom, a lower alkyl group or a group forming a prodrug;.
    Type: Application
    Filed: October 12, 2005
    Publication date: May 4, 2006
    Inventors: Hideki Fujikura, Nobuhiko Fushimi, Toshihiro Nishimura, Takeshi Nakabayashi, Masayuki Isaji
  • Publication number: 20060035840
    Abstract: The present invention provides nitrogen-containing heterocyclic derivatives represented by the general formula: wherein X1 represents Nor CR1; X2 represents Nor CR2; X3 represents N or CR3; X4 represents N or CR4; and with the proviso that one or two of X1 to X4 represent N; R represents optionally substituted C3-8 cycloalkyl, optionally substituted C6-10 aryl, etc.; R1 to R4 represent H, a halogen atom, etc.) or pharmaceutically acceptable salts thereof, or prodrugs thereof, which exert an excellent inhibitory activity in human SGLT2 and are useful as agents for the prevention or treatment of a disease associated with hyperglycemia such as diabetes, diabetic complications, obesity or the like, pharmaceutical compositions comprising the same, and medicinal uses thereof.
    Type: Application
    Filed: December 19, 2003
    Publication date: February 16, 2006
    Inventors: Hideki Fujikura, Toshihiro Nishimura, Kenji Katsuno, Masayuki Isaji
  • Publication number: 20060035847
    Abstract: The present invention provides glucopyranosyloxypyrazole derivatives represented by the general formula: wherein R represents a hydrogen atom, a lower alkyl group or a group forming a prodrug; one of Q and T represents a group represented by the general formula: (wherein P represents a hydrogen atom or a group forming a prodrug), while the other represents a lower alkyl group or a halo(lower alkyl) group; R2 represents a hydrogen atom, a lower alkyl group, a lower alkoxy group, a lower alkylthio group, a halo (lower alkyl) group or a halogen atom; and with the proviso that P does not represent a hydrogen atom when R represents a hydrogen atom or a lower alkyl group, or pharmaceutically acceptable salts thereof, which exert an inhibitory activity in human SGLT2 and have an improved oral absorption, and therefore are useful as agents for the prevention or treatment of a disease associated with hyperglycemia such as diabetes, diabetic complications or obesity, and pharmaceutically acceptable salts there
    Type: Application
    Filed: October 12, 2005
    Publication date: February 16, 2006
    Inventors: Hideki Fujikura, Nobuhiko Fushimi, Toshihiro Nishimura, Takeshi Nakabayashi, Masayuki Isaji
  • Publication number: 20060025352
    Abstract: The present invention provides glucopyranosyloxypyrazole derivatives represented by the general formula: wherein R represents a hydrogen atom, a lower alkyl group or a group forming a prodrug;.
    Type: Application
    Filed: October 12, 2005
    Publication date: February 2, 2006
    Inventors: Hideki Fujikura, Nobuhiko Fushimi, Toshihiro Nishimura, Takeshi Nakabayashi, Masayuki Isaji
  • Patent number: 6972283
    Abstract: The present invention relates to glucopyranosyloxypyrazole derivatives represented by the general formula: wherein R1 represents a hydrogen atom or a lower alkyl group; one of Q1 and T1 represents a group represented by the general formula: while the other represents a lower alkyl group or a halo(lower alkyl) group; and R2 represents a hydrogen atom, a lower alkyl group, a lower alkoxy group, a lower alkylthio group, a halo(lower alkyl) group or a halogen atom, or pharmaceutically acceptable salts thereof, which have an inhibitory activity in human SGLT2 and are useful as agents for the prevention or treatment of diabetes, diabetic complications or obesity, and to pharmaceutical compositions comprising the same and intermediates thereof.
    Type: Grant
    Filed: January 20, 2004
    Date of Patent: December 6, 2005
    Assignee: Kissei Pharmaceutical Co., Ltd.
    Inventors: Hideki Fujikura, Toshihiro Nishimura, Kenji Katsuno, Masahiro Hiratochi, Akira Iyobe, Minoru Fujioka, Masayuki Isaji
  • Publication number: 20050261205
    Abstract: The present invention relates to glucopyranosyloxypyrazole derivatives represented by the general formula: wherein R1 represents a hydrogen atom or a lower alkyl group; one of Q1 and T1 represents a group represented by the general formula: while the other represents a lower alkyl group or a halo(lower alkyl) group; and R2 represents a hydrogen atom, a lower alkyl group, a lower alkoxy group, a lower alkylthio group, a halo(lower alkyl) group or a halogen atom, or pharmaceutically acceptable salts thereof, which have an inhibitory activity in human SGLT2 and are useful as agents for the prevention or treatment of diabetes, diabetic complications or obesity, and to pharmaceutical compositions comprising the same and intermediates thereof.
    Type: Application
    Filed: July 27, 2005
    Publication date: November 24, 2005
    Inventors: Hideki Fujikura, Toshihiro Nishimura, Kenji Katsuno, Masahiro Hiratochi, Akira Iyobe, Minoru Fujioka, Masayuki Isaji
  • Publication number: 20050261206
    Abstract: The present invention relates to glucopyranosyloxypyrazole derivatives represented by the general formula: wherein R1 represents a hydrogen atom or a lower alkyl group; one of Q1 and T1 represents a group represented by the general formula: while the other represents a lower alkyl group or a halo(lower alkyl) group; and R2 represents a hydrogen atom, a lower alkyl group, a lower alkoxy group, a lower alkylthio group, a halo(lower alkyl) group or a halogen atom, or pharmaceutically acceptable salts thereof, which have an inhibitory activity in human SGLT2 and are useful as agents for the prevention or treatment of diabetes, diabetic complications or obesity, and to pharmaceutical compositions comprising the same and intermediates thereof.
    Type: Application
    Filed: July 28, 2005
    Publication date: November 24, 2005
    Inventors: Hideki Fujikura, Toshihiro Nishimura, Kenji Katsuno, Masahiro Hiratochi, Akira Iyobe, Minoru Fujioka, Masayuki Isaji
  • Publication number: 20050137143
    Abstract: The present invention relates to glucopyranosyloxypyrazole derivatives represented by the general formula: wherein R1 represents a hydrogen atom or a lower alkyl group; one of Q1 and T1 represents a group represented by the general formula: while the other represents a lower alkyl group or a halo(lower alkyl) group; and R2 represents a hydrogen atom, a lower alkyl group, a lower alkoxy group, a lower alkylthio group, a halo(lower alkyl) group or a halogen atom, or pharmaceutically acceptable salts thereof, which have an inhibitory activity in human SGLT2 and are useful as agents for the prevention or treatment of diabetes, diabetic complications or obesity, and to pharmaceutical compositions comprising the same and intermediates thereof.
    Type: Application
    Filed: November 3, 2004
    Publication date: June 23, 2005
    Inventors: Hideki Fujikura, Toshihiro Nishimura, Kenji Katsuno, Masahiro Hiratochi, Akira Iyobe, Minoru Fujioka, Masayuki Isaji
  • Publication number: 20050113315
    Abstract: The present invention relates to glucopyranosyloxybenzylbenzene derivatives represented by the general formula: wherein R1 represents a hydrogen atom, a hydroxy group, a substituted or unsubstituted amino group, a carbamoyl group, a substituted or unsubstituted(lower alkyl) group, a substituted or unsubstituted(lower alkoxy) group etc.; R2 represents a hydrogen atom or a lower alkyl group; and R3 represents a substituted or unsubstituted(lower alkyl) group, a substituted or unsubstituted(lower alkoxy) group, a substituted or unsubstituted(lower alkylthio) group etc., or pharmaceutically acceptable salts thereof, which have an inhibitory activity in human SGLT2 and are useful as agents for the prevention or treatment of a disease associated with hyperglycemia such as diabetes, diabetic complication or obesity, pharmaceutical compositions comprising the same and intermediates thereof.
    Type: Application
    Filed: November 2, 2004
    Publication date: May 26, 2005
    Inventors: Hideki Fujikura, Toshihiro Nishimura, Nobuhiko Fushimi, Kazuya Tatani, Norihiko Kikuchi, Kenji Katsuno, Masayuki Isaji
  • Publication number: 20050080022
    Abstract: The present invention relates to glucopyranosyloxybenzylbenzene derivatives represented by the general formula: wherein R1 represents a hydrogen atom or a hydroxy(lower alkyl) group; and R2 represents a lower alkyl group, a lower alkoxy group, a lower alkylthio group, a hydroxy(lower alkyl) group, a hydroxy(lower alkoxy) group, a hydroxy(lower alkylthio) group etc., and salts thereof, which have an excellent inhibitory activity in human SGLT2 and are useful as agents for the prevention or treatment of diabetes, obesity etc., and intermediates thereof.
    Type: Application
    Filed: October 7, 2004
    Publication date: April 14, 2005
    Inventors: Hideki Fujikura, Nobuhiko Fushimi, Toshihiro Nishimura, Kazuya Tatani, Kenji Katsuno, Masahiro Hiratochi, Yoshiki Tokutake, Masayuki Isaji
  • Publication number: 20050075294
    Abstract: The present invention relates to glucopyranosyloxybenzylbenzene derivatives represented by the general formula: wherein R1 represents a hydrogen atom or a hydroxy(lower alkyl) group; and R2 represents a lower alkyl group, a lower alkoxy group, a lower alkylthio group, a hydroxy(lower alkyl) group, a hydroxy(lower alkoxy) group, a hydroxy(lower alkylthio) group etc., and salts thereof, which have an excellent inhibitory activity in human SGLT2 and are useful as agents for the prevention or treatment of diabetes, obesity etc., and intermediates thereof.
    Type: Application
    Filed: October 7, 2004
    Publication date: April 7, 2005
    Inventors: Hideki Fujikura, Nobuhiko Fushimi, Toshihiro Nishimura, Kazuya Tatani, Kenji Katsuno, Masahiro Hiratochi, Yoshiki Tokutake, Masayuki Isaji
  • Patent number: 6872706
    Abstract: The present invention relates to glucopyranosyloxybenzylbenzene derivatives represented by the general formula: wherein P represents a group forming a prodrug; and R represents a lower alkyl group, a lower alkoxy group, a lower alkylthio group, a lower alkoxy-substituted (lower alkyl) group, a lower alkoxy-substituted (lower alkoxy) group or a lower alkoxy-substituted (lower alkylthio) group, which have an improved oral absorption and can exert an excellent inhibitory activity in human SGLT2 in vivo and which are useful as agents for the prevention or treatment of a disease associated with hyperglycemia such as diabetes, diabetic complications or obesity, and pharmaceutical compositions comprising the same.
    Type: Grant
    Filed: September 21, 2001
    Date of Patent: March 29, 2005
    Assignee: Kissei Pharmaceutical Co., Ltd.
    Inventors: Hideki Fujikura, Nobuhiko Fushimi
  • Publication number: 20050065098
    Abstract: The present invention relates to glucopyranosyloxy-benzylbenzene derivatives represented by the general formula: wherein P represents a group forming a prodrug; and R represents a lower alkyl group, a lower alkoxy group, a lower alkylthio group, a lower alkoxy-substituted (lower alkyl) group, a lower alkoxy-substituted (lower alkoxy) group or a lower alkoxy-substituted (lower alkylthio) group, which have an improved oral absorption and can exert an excellent inhibitory activity in human SGLT2 in vivo and which are useful as agents for the prevention or treatment of a disease associated with hyperglycemia such as diabetes, diabetic complications or obesity, and pharmaceutical compositions comprising the same.
    Type: Application
    Filed: August 12, 2004
    Publication date: March 24, 2005
    Inventors: Hideki Fujikura, Nobuhiko Fushimi, Toshihiro Nishimura, Kazuya Tatani, Masayuki Isaji
  • Publication number: 20050059614
    Abstract: The present invention relates to glucopyranosyl-oxybenzylbenzene derivatives represented by the general formula: wherein R1 represents a hydrogen atom, a hydroxy group, a substituted or unsubstituted amino group, a carbamoyl group, a substituted or unsubstituted(lower alkyl) group, a substituted or unsubstituted(lower alkoxy) group etc.; R2 represents a hydrogen atom or a lower alkyl group; and R3 represents a substituted or unsubstituted(lower alkyl) group, a substituted or unsubstituted(lower alkoxy) group, a substituted or unsubstituted(lower alkylthio) group etc., or pharmaceutically acceptable salts thereof, which have an inhibitory activity in human SGLT2 and are useful as agents for the prevention or treatment of a disease associated with hyperglycemia such as diabetes, diabetic complication or obesity, pharmaceutical compositions comprising the same and intermediates thereof.
    Type: Application
    Filed: November 2, 2004
    Publication date: March 17, 2005
    Inventors: Hideki Fujikura, Toshihiro Nishimura, Nobuhiko Fushimi, Kazuya Tatani, Norihiko Kikuchi, Kenji Katsuno, Masayuki Isaji