Patents by Inventor Kimiyuki Shibuya

Kimiyuki Shibuya 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).

  • Publication number: 20100063119
    Abstract: There is provided a novel LXR? agonist useful as a preventative and/or therapeutic agent for arteriosclerosis; arteriosclerosis such as those resulting from diabetes; hyperlipidemia; hypercholesterolemia; lipid-related diseases; inflammatory diseases caused by inflammatory cytokines, skin diseases such as allergic skin diseases, diabetes or Alzheimer's disease. The agonist is a carbinol derivative represented by the following general formula (1) or salt thereof, or their solvate.
    Type: Application
    Filed: November 29, 2007
    Publication date: March 11, 2010
    Applicant: KOWA COMPANY, LTD.
    Inventors: Takayuki Matsuda, Ayumu Okuda, Minoru Koura, Yuki Yamaguchi, Sayaka Kurobuchi, Yuuichirou Watanabe, Kimiyuki Shibuya
  • Publication number: 20100048610
    Abstract: [Object] To provide a novel LXR? agonist that is useful as a preventative and/or therapeutic agent for atherosclerosis; arteriosclerosis such as those resulting from diabetes; dyslipidemia; hypercholesterolemia; lipid-related diseases; inflammatory diseases that are caused by inflammatory cytokines; skin diseases such as allergic skin diseases; diabetes; or Alzheimer's disease. [Solving Means] A carbinol compound represented by the following general formula (I) or salt thereof, or their solvate.
    Type: Application
    Filed: May 29, 2009
    Publication date: February 25, 2010
    Applicant: KOWA COMPANY, LTD.
    Inventors: Yuki Yamaguchi, Minoru Koura, Sayaka Kurobuchi, Takayuki Matsuda, Ayumu Okuda, Hisashi Sumida, Yuuichirou Watanabe, Takashi Enomoto, Kimiyuki Shibuya
  • Patent number: 7659271
    Abstract: A compound represented by the following general formula (I), wherein R1, R2, R3, R4 and R5 represent hydrogen atom, a halo(lower alkyl) group, cyano group and the like, R6 represents an alkyl group, a cycloalkyl group and the like, R7, R8, R9 and R10 represent hydrogen atom, a halogen atom, a lower alkyl group, a halo(lower alkyl) group and the like, R11 and R12 represent hydrogen atom, a lower alkyl group, a (lower cycloalkyl) (lower alkyl) group and the like, and R13 represents hydrogen atom, a halogen atom, a lower alkoxy group and the like, which has potent inhibitory activity on cholesterol ester transfer protein (CETP).
    Type: Grant
    Filed: April 10, 2008
    Date of Patent: February 9, 2010
    Assignee: Kowa Company, Ltd.
    Inventors: Tadaaki Ohgiya, Toru Miura, Ayumu Okuda, Toshiharu Arai, Koichi Yamazaki, Taro Aoki, Katsutoshi Miyosawa, Haruki Shibata, Kimiyuki Shibuya
  • Publication number: 20100022572
    Abstract: It is to provide a novel compound useful for preventing and/or treating diabetes, insulin resistance, diabetes complication, obesity, dyslipidemia, hypertension, fatty liver, or metabolic syndrome. A spiro compound represented by the following general formula (1) or salt thereof, or their solvate.
    Type: Application
    Filed: July 16, 2009
    Publication date: January 28, 2010
    Applicant: KOWA COMPANY, LTD.
    Inventors: Hisashi Nakashima, Takahisa Ogamino, Takaaki Araki, Noriaki Gomi, Yasushi Kaneko, Kazutoyo Abe, Tadaaki Ohgiya, Kimiyuki Shibuya
  • Publication number: 20100016327
    Abstract: [Object] To provide a novel LXR? agonist that is useful as a preventative and/or therapeutic agent for atherosclerosis; arteriosclerosis such as those resulting from diabetes; dyslipidemia; hypercholesterolemia; lipid-related diseases; inflammatory diseases that are caused by inflammatory cytokines; skin diseases such as allergic skin diseases; diabetes; or Alzheimer's disease. [Solving Means] A quinoline compound represented by the following general formula (1) or salt thereof, or their solvate.
    Type: Application
    Filed: April 27, 2009
    Publication date: January 21, 2010
    Applicant: KOWA COMPANY, LTD.
    Inventors: Minoru KOURA, Ayumu OKUDA, Takayuki MATSUDA, Yuki YAMAGUCHI, Hisashi SUMIDA, Sayaka KUROBUCHI, Yuuichirou WATANABE, Takashi ENOMOTO, Kimiyuki SHIBUYA
  • Publication number: 20090286780
    Abstract: To provide a novel LXR? agonist that is useful as a preventative and/or therapeutic agent for atherosclerosis; arteriosclerosis such as those resulting from diabetes; dyslipidemia; hypercholesterolemia; lipid-related diseases; inflammatory diseases that are caused by inflammatory cytokines; skin diseases such as allergic skin diseases; diabetes; or Alzheimer's disease. [Solving Means] A 2-oxochromene derivative represented by the following general formula (1) or salt thereof, or their solvate.
    Type: Application
    Filed: February 27, 2009
    Publication date: November 19, 2009
    Applicant: KOWA COMPANY, LTD.
    Inventors: Ayumu OKUDA, Takayuki MATSUDA, Toru MIURA, Hidefumi OZAWA, Ayako TOSAKA, Koichi YAMAZAKI, Yuki YAMAGUCHI, Sayaka KUROBUCHI, Yuuichirou WATANABE, Kimiyuki SHIBUYA
  • Publication number: 20090275595
    Abstract: There is to provide is an agent for reduction of a lipid rich plaque, stabilization of a lipid rich plaque and/or prevention of rupture of a lipid rich plaque in an atherosclerotic lesion comprising an effective amount of 2-[4-[2-(benzimidazole-2-ylthio)ethyl]piperazin-1-yl]-N-[2,4-bis(methylthio)-6-methyl-3-pyridyl]acetamide (hereinafter, referred to as compound 1), its pharmaceutically acceptable salt or a hydrate thereof and Pitavastatin, and a pharmaceutically acceptable carrier, wherein the agent is intended to be simultaneously administered, or separately administered with interval of time to a patient in need thereof.
    Type: Application
    Filed: December 9, 2005
    Publication date: November 5, 2009
    Applicant: KOWA CO., LTD.
    Inventors: Hideyuki Kobayashi, Yasunobu Yoshinaka, Kimiyuki Shibuya
  • Publication number: 20090247587
    Abstract: The object is to provide a novel LXR? agonist that is useful as a preventative and/or therapeutic agent for atherosclerosis; arteriosclerosis such as those resulting from diabetes; dyslipidemia; hypercholesterolemia; lipid-related diseases; inflammatory diseases that are caused by inflammatory cytokines; skin diseases such as allergic skin diseases; diabetes; or Alzheimer's disease. The solving means is a 1,3-dihydroisobenzofuran derivative represented by the following general formula (1) or salt thereof, or their solvate.
    Type: Application
    Filed: March 30, 2009
    Publication date: October 1, 2009
    Applicant: KOWA COMPANY, LTD.
    Inventors: Ayumu OKUDA, Takayuki MATSUDA, Toru MIURA, Koichi YAMAZAKI, Yuki YAMAGUCHI, Minoru KOURA, Sayaka KUROBUCHI, Yuuichiro WATANABE, Kimiyuki SHIBUYA
  • Patent number: 7582791
    Abstract: A process for producing an optically active 2-hydroxybutyric ester (1), characterized by including reacting an optically active 2,3-epoxybutyric ester (2) with a thiol in the presence of scandium trifluoromethanesulfonate or ytterbium trifluoromethanesulfonate, to thereby produce Compound (3), and subjecting Compound (3) to desulfurization reaction: (wherein R represents a C1 to C6 alkyl group or a C7 or C8 aralkyl group; R1 represents a C1 to C12 alkyl group or a phenyl group; and * represents S- or R-absolute configuration). The present invention provides a process for producing an optically active 2-hydroxybutyric ester at high yield and high optical purity.
    Type: Grant
    Filed: August 24, 2006
    Date of Patent: September 1, 2009
    Assignee: Kowa Co., Ltd.
    Inventors: Takaaki Araki, Yukiyoshi Yamazaki, Kimiyuki Shibuya
  • Publication number: 20090209780
    Abstract: To provide a process for producing an optically active 2-hydroxybutyric ester at high yield and high optical purity. The process for producing an optically active 2-hydroxybutyric ester (1), characterized in that the process includes reacting an optically active 2,3-epoxypropionic ester (2) with a methyl Grignard reagent CH3MgX (wherein X represents a halogen atom) in the presence of a copper catalyst in an amount of 0.05 to 0.5 mol with respect to 1 mol of (2) through the following scheme: (wherein R represents a C1 to C6 alkyl group or a C7 or C8 aralkyl group; X represents a halogen atom; and * represents S- or R-absolute configuration).
    Type: Application
    Filed: July 27, 2006
    Publication date: August 20, 2009
    Applicant: Kowa Co., Ltd.
    Inventors: Minoru Koura, Yukiyoshi Yamazaki, Kimiyuki Shibuya
  • Patent number: 7576203
    Abstract: The present invention provides an industrially useful method for synthesizing a cyclic diamine derivative (4) or a salt thereof which serves as an ACAT inhibitor. A 2-hydroxyacetylaminopyridine compound represented by formula (1), and a method for producing a cyclic diamine derivative represented by formula (4) or a salt thereof from compound (1) through 1) Step A-1, 2) Steps B-1 and B-2, or 3) Steps B-1, B-3, and B-4.
    Type: Grant
    Filed: June 30, 2005
    Date of Patent: August 18, 2009
    Assignee: Kowa Co., Ltd.
    Inventors: Kimiyuki Shibuya, Ayako Tosaka
  • Patent number: 7560547
    Abstract: The present invention is directed to a process for producing a compound (5) from the compound (1). By use of the compound (1), a variety of cyclic diamine derivatives (5) or salts thereof, useful as drugs, can be produced in an industrially advantageous manner with a constant yield.
    Type: Grant
    Filed: December 18, 2006
    Date of Patent: July 14, 2009
    Assignee: Kowa Co., Ltd.
    Inventors: Kimiyuki Shibuya, Tadaaki Ohgiya, Toru Miura
  • Patent number: 7538242
    Abstract: The present invention provides a production intermediate for compound (A-1) and a method for producing the intermediate at high yield and high optical yield.
    Type: Grant
    Filed: February 28, 2006
    Date of Patent: May 26, 2009
    Assignee: Kowa Co., Ltd.
    Inventors: Yukiyoshi Yamazaki, Takaaki Araki, Minoru Koura, Kimiyuki Shibuya
  • Publication number: 20090118535
    Abstract: A process for producing an optically active 2-hydroxybutyric ester (1), characterized by including reacting an optically active 2,3-epoxybutyric ester (2) with a thiol in the presence of scandium trifluoromethanesulfonate or ytterbium trifluoromethanesulfonate, to thereby produce Compound (3), and subjecting Compound (3) to desulfurization reaction: (wherein R represents a C1 to C6 alkyl group or a C7 or C8 aralkyl group; R1 represents a C1 to C12 alkyl group or a phenyl group; and * represents S- or R-absolute configuration). The present invention provides a process for producing an optically active 2-hydroxybutyric ester at high yield and high optical purity.
    Type: Application
    Filed: August 24, 2006
    Publication date: May 7, 2009
    Inventors: Takaaki Araki, Yukiyoshi Yamazaki, Kimiyuki Shibuya
  • Publication number: 20090082352
    Abstract: A compound represented by the following general formula (I), wherein R1, R2, R3, R4 and R5 represent hydrogen atom, a halo(lower alkyl) group, cyano group and the like, R6 represents an alkyl group, a cycloalkyl group and the like, R7, R8, R9 and R10 represent hydrogen atom, a halogen atom, a lower alkyl group, a halo(lower alkyl) group and the like, R11 and R12 represent hydrogen atom, a lower alkyl group, a (lower cycloalkyl) (lower alkyl) group and the like, and R13 represents hydrogen atom, a halogen atom, a lower alkoxy group and the like, which has potent inhibitory activity on cholesterol ester transfer protein (CETP).
    Type: Application
    Filed: April 10, 2008
    Publication date: March 26, 2009
    Applicant: KOWA COMPANY, LTD.
    Inventors: Tadaaki OHGIYA, Toru MIURA, Ayumu OKUDA, Toshiharu ARAI, Koichi YAMAZAKI, Taro AOKI, Katsutoshi MIYOSAWA, Haruki SHIBATA, Kimiyuki SHIBUYA
  • Publication number: 20090076280
    Abstract: The invention provides a process for producing an optically active butyric acid compound and a production intermediate therefor at high yield and high purity. The present invention provides a process for producing Compound (6), including reacting Compound (1) with optically active 2-trifluoromethanesulfonyloxybutyrolactone (2a) in the presence of a base or reacting optically active 2-hydroxybutyrolactone (2b) under Mitsunobu reaction conditions, to thereby form Compound (3); reacting Compound (3) with an alcohol and a halogenating agent, to thereby form Compound (4); dehalogenating Compound (4), to thereby form Compound (5); and de-esterifying Compound (5).
    Type: Application
    Filed: May 30, 2006
    Publication date: March 19, 2009
    Applicant: Kowa Co., Ltd.
    Inventors: Yukiyoshi Yamazaki, Takaaki Araki, Minoru Koura, Kimiyuki Shibuya
  • Publication number: 20090062306
    Abstract: A compound represented by the following general formula (I), wherein R1, R2, R3, R4 and R5 represent hydrogen atom, a halogen atom, a lower alkyl group and the like, R6 represents an alkyl group, a cycloalkyl group and the like, R7 and R8 represent hydrogen atom, a lower alkyl group, a (lower cycloalkyl)(lower alkyl) group and the like, R9 represents hydrogen atom, a halogen atom, a lower alkoxy group and the like, R10 and R11 represent hydrogen atom, a lower alkyl group, a lower alkoxy group, a halo(lower alkyl) group and the like, and A represents a heterocyclic ring constituted by 6 to 10 atoms, which has potent inhibitory activity on cholesterol ester transfer protein (CETP).
    Type: Application
    Filed: March 11, 2008
    Publication date: March 5, 2009
    Applicant: KOWA COMPANY, LTD.
    Inventors: Tadaaki OHGIYA, Toru MIURA, Ayumu OKUDA, Toshiharu ARAI, Koichi YAMAZAKI, Taro AOKI, Katsutoshi MIYOSAWA, Haruki SHIBATA, Kimiyuki SHIBUYA
  • Publication number: 20090054474
    Abstract: A compound represented by the following general formula (I) or a salt thereof, or a solvate thereof: (wherein R1, R2, R3, R4 and R5 are the same or different, and represent hydrogen atom, a halogen atom, a lower alkyl group etc., R6, R7 and R8 are the same or different, and represent hydrogen atom, a halogen atom, a lower alkyl group etc., R9 and R10 are the same or different, and represent hydrogen atom, a lower alkyl group, a (lower cycloalkyl)(lower alkyl) group etc., and R11 represents hydrogen atom, a halogen atom, a lower alkoxy group, a (lower alkyl)thio(lower alkoxy) group, a (lower alkyl)sulfinyl(lower alkoxy) group, a (lower alkyl)sulfonyl(lower alkoxy) group etc.), which has potent inhibitory activity on CETP.
    Type: Application
    Filed: August 7, 2007
    Publication date: February 26, 2009
    Applicant: Kowa Company, Ltd.
    Inventors: Tadaaki OHGIYA, Toru MIURA, Ayumu OKUDA, Toshiharu ARAI, Koichi YAMAZAKI, Taro AOKI, Katsutoshi MIYOSAWA, Haruki SHIBATA, Kimiyuki SHIBUYA
  • Publication number: 20090023944
    Abstract: The present invention provides a production intermediate for compound (A-1) and a method for producing the intermediate at high yield and high optical yield. The present invention provides a method for producing compound (3) characterized in that compound (1) is reacted with compound (2) in the presence of a base. (wherein R represents a C1 to C6 alkyl group or a C7 to C8 aralkyl group).
    Type: Application
    Filed: February 28, 2006
    Publication date: January 22, 2009
    Applicant: Kowa Co., Ltd.
    Inventors: Yukiyoshi Yamazaki, Takaaki Araki, Minoru Koura, Kimiyuki Shibuya
  • Publication number: 20080306102
    Abstract: A Spiro oxindole compound represented by formula (1) of the present invention or salt thereof, or their solvate shows a superior inhibitory effect of 11?-hydroxysteroid dehydrogenasel, and is useful as an agent for preventing or treating a disease that involves 11?-hydroxysteroid dehydrogenasel (in particular, diabetes, insulin resistance, diabetes complication, obesity, dyslipidemia, hypertension, fatty liver, or metabolic syndrome).
    Type: Application
    Filed: May 16, 2008
    Publication date: December 11, 2008
    Applicant: KOWA CO., LTD.
    Inventors: Hisashi NAKASHIMA, Takaaki ARAKI, Takahisa OGAMINO, Yasushi KANEKO, Kazutoyo ABE, Kimiyuki SHIBUYA, Tadaaki OHGIYA