Patents by Inventor Tetsuo Asaki

Tetsuo Asaki 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: 8673891
    Abstract: The present invention relates to a compound represented by general formula [1] satisfying the following (I) or (II), or a pharmaceutical acceptable salt of the compound. (I) X is CH or N; R1 is a halogen atom, and R2 is H, a halogen atom, CN, [2], [3], [8], [9], an —O-alkyl, an —O-(saturated ring), etc. [2]: —C(RC)(RD)(RE) (RC to RE each are H, an alkyl, etc.) [3]: —N(RF)(RG) (RF and RG each are H, OH, amino, a (hetero)aryl, etc.) [8]: —C(?O)RL (RL is an alkyl, OH, an alkoxy, amino, etc.) [9]: a (substituted)phenyl; (II) X is >C—C(—O)RB (RB is a (substituted)amino, an alkoxy, OH, etc.); R1 is a halogen atom; R2 is H; R3 is H or OH; and R3 and R4 each are H or an alkyl.
    Type: Grant
    Filed: February 5, 2010
    Date of Patent: March 18, 2014
    Assignee: Nippon Shinyaku Co., Ltd.
    Inventors: Hidetaka Fujihara, Tetsuo Asaki, Katsutoshi Hori, Haruna Naito
  • Patent number: 8586591
    Abstract: The present invention relates to a compound represented by general formula [1] satisfying the following (I) or (II), or a pharmaceutically acceptable salt of the compound. (I) is CH or N; R1 is a halogen atom; and R2 is H, a halogen atom, CN, [2], [3], [8], [9], an —O-alkyl, an —O— (saturated ring), etc. [2]: —C(RC)(RD)(RE) (RC to RE each are H, an alkyl, etc.) [3]: —N(RF)(RG) (RF and RG each are H, OH, amino, a (hetero)aryl, etc.) [8]: —C(?O)RL (RL is an alkyl, OH, an alkoxy, amino, etc.) [9]: a (substituted)phenyl; (II) X is >C—C(?O)RB (RB is a (substituted)amino, an alkoxy, OH, etc.); R1 is a halogen atom; and R2 is H; and R3 is H or OH; and R4 and R5 each are H or an alkyl.
    Type: Grant
    Filed: January 17, 2013
    Date of Patent: November 19, 2013
    Assignee: Nippon Shinyaku Co., Ltd.
    Inventors: Hidetaka Fujihara, Tetsuo Asaki, Katsutoshi Hori, Haruna Naito
  • Publication number: 20130131082
    Abstract: The present invention relates to a compound represented by general formula [1] satisfying the following (I) or (II), or a pharmaceutically acceptable salt of the compound. (I) X is CH or N; R1 is a halogen atom; and R2 is H, a halogen atom, CN, [2], [3], [8], [9], an —O-alkyl, an —O-(saturated ring), etc. [2]: —C(RC) (RD) (RE) (RC to RE each are H, an alkyl, etc.) [3]: —N(RF) (RG) (RF and RG each are H, OH, amino, a (hetero) aryl, etc.) [8]: —C(?O)RL (RL is an alkyl, OH, an alkoxy, amino, etc.) [9]: a (substituted)phenyl; (II) X is ?C—C(?O)RB (RB is a (substituted)amino, an alkoxy, OH, etc.); R1 is a halogen atom; and R2 is H; and R3 is H or OH; and R4 and R5 each are H or an alkyl.
    Type: Application
    Filed: January 17, 2013
    Publication date: May 23, 2013
    Applicant: Nippon Shinyaku Co., Ltd
    Inventors: Hidetaka FUJIHARA, Tetsuo ASAKI, Katsutoshi HORI, Haruna NAITO
  • Publication number: 20110288065
    Abstract: The present invention relates to a compound represented by general formula [1] satisfying the following (I) or (II), or a pharmaceutical acceptable salt of the compound. (I) X is CH or N; R1 is a halogen atom,; and R2 is H, a halogen atom, CN, [2], [3], [8], [9], an —O-alkyl, an —O-(saturated ring), etc. [2]: —C(RC)(RD)(RE) (RC to RE each are H, an alkyl, etc.) [3]: —N(RF)(RG) (RF and RG each are H, OH, amino, a (hetero)aryl, etc.) [8]: —C(?O)RL (RL is an alkyl, OH, an alkoxy, amino, etc.) [9]: a (substituted)phenyl; (II) X is >C—C(—O)R3 (R3 is a (substituted)amino, an alkoxy, OH, etc.); R1 is a halogen atom; R2 is H; R3 is H or OH; and R3 and R4 each are H or an alkyl.
    Type: Application
    Filed: February 5, 2010
    Publication date: November 24, 2011
    Applicant: NIPPON SHINYAKU CO., LTD.
    Inventors: Hidetaka Fujihara, Tetsuo Asaki, Katsutoshi Hori, Haruna Naito
  • Patent number: 7728131
    Abstract: The present invention is directed to an amide derivative having excellent BCR-ABL tyrosine kinase inhibitory activity, or a salt thereof. The present invention provides an amide derivative represented by the following general formula (1): [Chemical 23] (wherein R1 represents —CH2—R11, etc.; R2 represents alkyl, halogen, haloalkyl, etc.; R3 represents hydrogen, etc.; Het1 represents a group of the formula [6] as above, etc.; and Het2 represents pyrimidinyl, etc.), or a pharmaceutically acceptable salt thereof, and a pharmaceutical composition comprising the same as an active ingredient. The compound of the present invention is useful as a BCR-ABL tyrosine kinase inhibitor.
    Type: Grant
    Filed: December 27, 2004
    Date of Patent: June 1, 2010
    Assignee: Nippon Shinyaku Co., Ltd.
    Inventors: Tetsuo Asaki, Yukiteru Sugiyama, Jun Segawa
  • Patent number: 7494997
    Abstract: The present invention provides an amide derivative represented by the following general formula (1): wherein R1 represents a saturated cyclic amino group, R2 represents alkyl, halogen or haloalkyl, R3 represents hydrogen or halogen, Het 2 represents pyridyl or pyrimidinyl, and Het 1 represents a group of the formula [6], or a salt thereof, and a pharmaceutical composition comprising the same as an active ingredient. The compound of the present invention is useful as a BCR-ABL tyrosine kinase inhibitor.
    Type: Grant
    Filed: June 27, 2003
    Date of Patent: February 24, 2009
    Assignee: Nippon Shinyaku Co., Ltd.
    Inventors: Tetsuo Asaki, Taisuke Hamamoto, Yukiteru Sugiyama
  • Publication number: 20080293940
    Abstract: The present invention is directed to an amide derivative having excellent BCR-ABL tyrosine kinase inhibitory activity, or a salt thereof. The present invention provides an amide derivative represented by the following general formula (1): [Chemical 23] (wherein R1 represents —CH2—R11, etc.; R2 represents alkyl, halogen, haloalkyl, etc.; R3 represents hydrogen, etc.; Het1 represents a group of the formula [6] as above, etc.; and Het2 represents pyrimidinyl, etc.), or a pharmaceutically acceptable salt thereof, and a pharmaceutical composition comprising the same as an active ingredient. The compound of the present invention is useful as a BCR-ABL tyrosine kinase inhibitor.
    Type: Application
    Filed: December 27, 2004
    Publication date: November 27, 2008
    Inventors: Tetsuo Asaki, Yukiteru Sugiyama, Jun Segawa
  • Patent number: 7205302
    Abstract: The present invention provides a compound which is useful as a PGI2 receptor agonist, and a pharmaceutical composition. The present invention is directed to a pharmaceutical composition comprising a compound represented by the following formula [1]: (R1 and R2 are the same or different and each represents optionally substituted aryl, Y represents N or CH, Z represents N or CH, A represents NH, NR5, O, S, or ethylene, R5 represents alkyl, D represents alkylene or alkenylene, E represents phenylene or single bond, G represents O, S, or CH2, R3 and R4 are the same or different and each represents hydrogen or alkyl, Q represents carboxy, alkoxycarbonyl, tetrazolyl, carbamoyl, or N-(alkylsulfonyl)carbamoyl), or a pharmaceutically acceptable salt thereof as an active ingredient.
    Type: Grant
    Filed: April 25, 2002
    Date of Patent: April 17, 2007
    Assignee: Nippon Shinyaku Co., Ltd.
    Inventors: Tetsuo Asaki, Taisuke Hamamoto, Keiichi Kuwano
  • Publication number: 20060014742
    Abstract: The present invention provides an amide derivative represented by the following general formula (1): wherein R1 represents a saturated cyclic amino group, R2 represents alkyl, halogen or haloalkyl, R3 represents hydrogen or halogen, Het 2 represents pyridyl or pyrimidinyl, and Het 1 represents a group of the formula [6], or a salt thereof, and a pharmaceutical composition comprising the same as an active ingredient. The compound of the present invention is useful as a BCR-ABL tyrosine kinase inhibitor.
    Type: Application
    Filed: June 27, 2003
    Publication date: January 19, 2006
    Inventors: Tetsuo Asaki, Taisuke Hamamoto, Yukiteru Sugiyama
  • Publication number: 20040102436
    Abstract: The present invention provides a compound which is useful as a PGI2 receptor agonist, and a pharmaceutical composition.
    Type: Application
    Filed: October 23, 2003
    Publication date: May 27, 2004
    Inventors: Tetsuo Asaki, Taisuke Hamamoto, Keiichi Kuwano