Patents by Inventor Nobuhiko Kawanishi

Nobuhiko Kawanishi 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: 8614221
    Abstract: The instant invention provides for substituted fused naphthyridine derivatives that inhibit Akt activity. In particular, the compounds disclosed selectively inhibit one or two of the Akt isoforms. The invention also provides for compositions comprising such inhibitory compounds and methods of inhibiting Akt activity by administering the compound to a patient in need of treatment of cancer.
    Type: Grant
    Filed: March 10, 2010
    Date of Patent: December 24, 2013
    Assignees: Merck Sharp & Dohme Corp., MSD K.K.
    Inventors: Weiming Fan, Thomas F. N. Haxell, Matthew G. Jenks, Nobuhiko Kawanishi, Shuliang Lee, Hao Liu, Michael J. Malaska, Joseph A. Moore, III, Yoshio Ogino, Yu Onozaki, Bharathi Pandi, Michael R. Peel, Toshihiro Sakamoto, Tony Siu
  • Patent number: 8536193
    Abstract: The instant invention provides for substituted [1,2,4]triazolo[4,3-a]-1,5-naphthyridine compounds that inhibit Akt activity. In particular, the compounds disclosed selectively inhibit one or two of the Akt isoforms, preferably Akt1. The invention also provides for compositions comprising such inhibitory compounds and methods of inhibiting Akt activity, especially Akt1 by administering the compound to a patient in need of treatment of cancer.
    Type: Grant
    Filed: May 27, 2009
    Date of Patent: September 17, 2013
    Assignees: Merck Sharp & Dohme Corp., MSD K.K.
    Inventors: Hidetomo Furuyama, Yasuhiro Goto, Nobuhiko Kawanishi, Mark E. Layton, Takashi Mita, Yoshio Ogino, Yu Onozaki, Michael A. Rossi, Toshihiro Sakamoto, Philip E. Sanderson, Jiabing Wang
  • Patent number: 8519136
    Abstract: The present invention relates to a compound of formula I: wherein: R1 is a hydrogen atom, F, CN, etc.; R2 is CO, SO2, etc.; R3 is a phenyl which may be substituted; X1, X2, and X3 each independently CH, N, etc. provided, however, that among X1, X2 and X3, the number of nitrogen is 0 or 1; W is the following residue: wherein: W1, W2, and W3 each independently CH, N, etc., or a pharmaceutically acceptable salt or ester thereof.
    Type: Grant
    Filed: February 18, 2009
    Date of Patent: August 27, 2013
    Assignee: MSD K.K.
    Inventors: Tetsuya Kato, Nobuhiko Kawanishi, Takashi Mita, Katsumasa Nonoshita, Mitsuru Ohkubo
  • Patent number: 8492397
    Abstract: The present invention relates to a compound of Formula (I): wherein R1 is H or C1-2 alkyl; R2 is H or C1-3 alkyl; R3 and R4 are each independently H or C1-2 alkyl, where the alkyl may be substituted with one to three of the same or different substituents selected from R10; R5 is H, hydroxy, C1-2 alkyl, or OCH3; and R10 is F or Cl, or a pharmaceutically acceptable salt or ester thereof.
    Type: Grant
    Filed: March 12, 2010
    Date of Patent: July 23, 2013
    Assignees: Vertex Pharmaceuticals Incorporated, MSD K.K.
    Inventors: Hayley Binch, Masaya Hashimoto, Toshiharu Iwama, Nobuhiko Kawanishi, Michael Mortimore, Mitsuru Ohkubo, Tomoko Sunami
  • Patent number: 8263632
    Abstract: The present invention relates to a compound of Formula (I): wherein: n is 0 or 1; X is 0 or CH2; R1 is H or C1-2 alkyl; R2 is H or C1-3 alkyl; R3 and R4 are each independently H or C1-2 alkyl, where the alkyl may be substituted with one to three of the same or different substituents selected from R10; R5 is H or OCH3; R10 is F or Cl; or a pharmaceutically acceptable salt or ester thereof
    Type: Grant
    Filed: March 15, 2010
    Date of Patent: September 11, 2012
    Assignees: Vertex Pharmaceuticals Incoporated, MSD K.K.
    Inventors: Toshiharu Iwama, Nobuhiko Kawanishi, Michael Mortimore, Mitsuru Ohkubo, Tomoko Sunami
  • Patent number: 8207169
    Abstract: The compounds of Formula D are of the class of triazolo-pyrido-pyrazines which are inhibitors of AKT useful for the treatment of cancer
    Type: Grant
    Filed: May 28, 2009
    Date of Patent: June 26, 2012
    Assignee: MSD K.K.
    Inventors: Hidetomo Furuyama, Yasuhiro Goto, Nobuhiko Kawanishi, Mark E. Layton, Takashi Mita, Akira Naya, Yoshio Ogino, Yu Onozaki, Kevin J. Rodzinak, Toshihiro Sakamoto, Philip E. Sanderson, Jiabing Wang
  • Publication number: 20120029004
    Abstract: The present invention relates to a compound of Formula (I): wherein: R1 is H or C1-2 alkyl; R2 is H or C1-3 alkyl; R3 and R4 are each independently H or C1-2 alkyl, where the alkyl may be substituted with one to three of the same or different substituents selected from R10; R5 is H, hydroxy, C1-2 alkyl, or OCH3; and R10 is F or Cl, or a pharmaceutically acceptable salt or ester thereof.
    Type: Application
    Filed: March 12, 2010
    Publication date: February 2, 2012
    Inventors: Hayley Binch, Masaya Hashimoto, Toshiharu Iwama, Nobuhiko Kawanishi, Michael Mortimore, Mitsuru Ohkubo, Tomoko Sunami
  • Patent number: 8101621
    Abstract: The present invention relates to a compound of general formula I: wherein: n1 and n2 are the same or different, and are 0 or 1; R is aryl, heteroaryl, etc.; Re is hydrogen atom or lower alkyl; two groups selected from four groups consisting of (i) either one of Ra1 and Ra1?, (ii) either one of Ra2 and Ra2?, (iii) either one of Rb1 and Rb1?, and (iv) either one of Rb2 and Rb2?, are combined to form —(CH2)n— where n is 1, 2 or 3; and among Ra1, Ra1?, Ra2, Ra2?, Rb1, Rb1?, Rb2 and Rb2?, the groups which do not form —(CH2)n— are each independently hydrogen atom, etc.; X1, X2, X3 and X4 are each independently CH, N, etc.; Y1, Y2, Y3 and Y4 are the same or different and are CH or N, etc.; W is a 5-membered aromatic heterocyclic group, or a pharmaceutically acceptable salt or ester thereof.
    Type: Grant
    Filed: April 25, 2007
    Date of Patent: January 24, 2012
    Assignee: MSD K.K.
    Inventors: Tetsuya Kato, Nobuhiko Kawanishi, Takashi Mita, Keita Nagai, Katsumasa Nonoshita, Mitsuru Ohkubo
  • Publication number: 20120015940
    Abstract: The present invention relates to a compound of Formula (I): wherein: n is 0 or 1; X is O or CH2; R1 is H or C1-2 alkyl; R2 is H or C1-3 alkyl; R3 and R4 are each independently H or C1-2 alkyl, where the alkyl may be substituted with one to three of the same or different substituents selected from R10 R5 is H or OCH3; R10 is F or Cl; or a pharmaceutically acceptable salt or ester thereof.
    Type: Application
    Filed: March 15, 2010
    Publication date: January 19, 2012
    Inventors: Toshiharu Iwama, Nobuhiko Kawanishi, Michael Mortimore, Mitsuru Ohkubo, Tomoko Sunami
  • Publication number: 20120004240
    Abstract: The instant invention provides for substituted fused naphthyridine derivatives that inhibit Akt activity. In particular, the compounds disclosed selectively inhibit one or two of the Akt isoforms. The invention also provides for compositions comprising such inhibitory compounds and methods of inhibiting Akt activity by administering the compound to a patient in need of treatment of cancer.
    Type: Application
    Filed: March 3, 2010
    Publication date: January 5, 2012
    Inventors: Weiming Fan, Thomas F.N. Haxell, Matthew G. Jenks, Nobuhiko Kawanishi, Shuliang Lee, Hao Liu, Michael J. Malaska, Joseph A. Moore, III, Yoshio Ogino, Yu Onozaki, Bharathi Pandi, Michael R. Peel, Toshihiro Sakamoto, Tony Siu
  • Publication number: 20110092511
    Abstract: The instant invention provides for substituted naphthyridine compounds that inhibit Akt activity. In particular, the compounds disclosed selectively inhibit one or two of the Akt isoforms, preferably Akt1. The invention also provides for compositions comprising such inhibitory compounds and methods of inhibiting Akt activity especially Akt1 by administering the compound to a patient in need of treatment of cancer.
    Type: Application
    Filed: May 28, 2009
    Publication date: April 21, 2011
    Inventors: Hidetomo Furuyama, Yasuhiro Goto, Nobuhiko Kawanishi, Mark E. Layton, Takashi Mita, Akira Naya, Yoshio Ogino, Yu Onozaki, Kevin J. Rodzinak, Toshihiro Sakamoto, Philip E. Sanderson, Jiabing Wang
  • Publication number: 20110082135
    Abstract: The instant invention provides for substituted [1,2,4]triazolo[4,3-a]-1,5-naphthyridine compounds that inhibit Akt activity. In particular, the compounds disclosed selectively inhibit one or two of the Akt isoforms, preferably Akt1. The invention also provides for compositions comprising such inhibitory compounds and methods of inhibiting Akt activity, especially Akt1 by administering the compound to a patient in need of treatment of cancer.
    Type: Application
    Filed: May 27, 2009
    Publication date: April 7, 2011
    Inventors: Hidetomo Furuyama, Yasuhiro Goto, Nobuhiko Kawanishi, Mark E. Layton, Takashi Mita, Yoshio Ogino, Yu Onozaki, Michael A. Rossi, Toshihiro Sakamoto, Philip E. Sanderson, Jiabing Wang
  • Patent number: 7915263
    Abstract: The present invention relates to a compound of formula I: wherein: R1 is a hydrogen atom, F, CN, etc.; R1? is a hydrogen atom or lower alkyl which may be substituted; R2 is O, S, SO, SO2, etc.; R3 is a phenyl which may be substituted; X1, X2, and X3 each independently CH, N, etc. provided, however, that among X1, X2 and X3, the number of nitrogen is 0 or 1; W is the following residue: wherein: W1, W2, and W3 each independently CH, N, etc., or a pharmaceutically acceptable salt or ester thereof.
    Type: Grant
    Filed: August 29, 2007
    Date of Patent: March 29, 2011
    Assignee: Banyu Pharmaceutical Co., Ltd.
    Inventors: Yoshikazu Iwasawa, Tetsuya Kato, Nobuhiko Kawanishi, Kouta Masutani, Takashi Mita, Katsumasa Nonoshita, Mitsuru Ohkubo
  • Publication number: 20110003833
    Abstract: The present invention relates to a compound of formula I: wherein: R1 is a hydrogen atom, F, CN, etc.; R2 is CO, SO2, etc.; R3 is a phenyl which may be substituted; X1, X2, and X3 each independently CH, N, etc. provided, however, that among X1, X2 and X3, the number of nitrogen is 0 or 1; W is the following residue: wherein: W1, W2, and W3 each independently CH, N, etc., or a pharmaceutically acceptable salt or ester thereof.
    Type: Application
    Filed: February 18, 2009
    Publication date: January 6, 2011
    Inventors: Tetsuya Kato, Nobuhiko Kawanishi, Takashi Mita, Katsumasa Nonoshita, Mitsuru Ohkubo
  • Patent number: 7834018
    Abstract: The present invention relates to a compound represented by the general formula (I): wherein m1 and m2 are 1, 2, or 3; n1 and n2 are 0 or 1; i is an integer of any of 1 to m1; j is an integer of 1 to m2; R is aryl, heteroaryl, or cycloalkyl any of which may be substituted; Rai and Rai? is hydrogen atom, etc. and Rbj and Rbj? is hydrogen atom, etc.; Rc, Rd, and Re are hydrogen atom, etc; X1 is CH, CX1a, or N; X2 is CH, N, etc.; X3 is CH, N, etc.; X4 is CH or N; Y1, Y2, and Y3 are each independently CH or N; Z1 and Z2 are each independently CH or N; W is a 5-membered aromatic heterocyclic group such as pyrazolyl, thiazolyl, etc., or a pharmaceutically acceptable salt or ester thereof; a pharmaceutical composition or antitumor agent containing the same; and combinations of the antitumor agent with other antitumor agent(s).
    Type: Grant
    Filed: December 3, 2008
    Date of Patent: November 16, 2010
    Assignee: Banyu Pharmaceutical Co., Ltd
    Inventors: Mitsuru Ohkubo, Tetsuya Kato, Nobuhiko Kawanishi, Takashi Mita, Toshiyasu Shimomura
  • Patent number: 7709475
    Abstract: The present invention relates to a compound represented by Formula [I]: wherein X is O, S, NH or CH2; Y1, Y2, Y3, Y4 and Y5, which may be identical or different, are each CH or N; however, at least one of Y1, Y2, Y3, Y4 and Y5 is N; Z1 and Z2, which may be identical or different, are each CH or N; n is an integer from 1 to 3; R1 is a C3-C8 cycloalkyl group, a C6-C10 aryl group, an aliphatic heterocyclic ring or an aromatic heterocyclic ring, or a bicyclic aliphatic saturated hydrocarbon group; R2 and R3, which may be identical or different, are each a hydrogen atom, a lower alkyl group, a lower alkenyl group, a C3-C8 cycloalkyl group, a C6-C10 aryl group, an aromatic heterocyclic ring, or the like; and R4 is a hydrogen atom, a lower alkyl group, a C3-C6 cycloalkyl group or the like, or a pharmaceutically acceptable salt or ester thereof, and a selective inhibitor against Cdk4 and/or Cdk6 or an anticancer agent containing the compound or a pharmaceutically acceptable salt or ester thereof.
    Type: Grant
    Filed: May 19, 2005
    Date of Patent: May 4, 2010
    Assignee: Banyu Pharmaceutical Co., Ltd.
    Inventors: Yoshikazu Iwasawa, Jun Shibata, Tadashi Shimamura, Hideki Kurihara, Takashi Mita, Nobuhiko Kawanishi, Takashi Hashihayata, Mikako Kawamura, Takeshi Sagara, Sachie Arai, Hiroshi Hirai
  • Publication number: 20100016335
    Abstract: The present invention relates to a compound of formula I: wherein: R1 is a hydrogen atom, F, CN, etc.; R1? is a hydrogen atom or lower alkyl which may be substituted; R2 is O, S, SO, SO2, etc.; R3 is a phenyl which may be substituted; X1, X2, and X3 each independently CH, N, etc. provided, however, that among X1, X2 and X3, the number of nitrogen is 0 or 1; W is the following residue: wherein: W1, W2, and W3 each independently CH, N, etc., or a pharmaceutically acceptable salt or ester thereof.
    Type: Application
    Filed: August 29, 2007
    Publication date: January 21, 2010
    Inventors: Yoshikazu Iwasawa, Tetsuya Kato, Nobuhiko Kawanishi, Kouta Masutani, Takashi Mita, Katsumasa Nonoshita, Mitsuru Ohkubo
  • Publication number: 20090192174
    Abstract: The present invention relates to a compound of general formula I: wherein: n1 and n2 are the same or different, and are 0 or 1; R is aryl, heteroaryl, etc.; Re is hydrogen atom or lower alkyl; two groups selected from four groups consisting of (i) either one of Ra1 and Ra1?, (ii) either one of Ra2 and Ra2?, (iii) either one of Rb1 and Rb1?, and (iv) either one of Rb2 and Rb2?, are combined to form —(CH2)n— where n is 1, 2 or 3; and among Ra1, Ra1?, Ra2, Ra2?, Rb1, Rb1?, Rb2 and Rb2?, the groups which do not form —(CH2)n— are each independently hydrogen atom, etc.; X1, X2, X3 and X4 are each independently CH, N, etc.; Y1, Y2, Y3 and Y4 are the same or different and are CH or N, etc.; W is a 5-membered aromatic heterocyclic group, or a pharmaceutically acceptable salt or ester thereof.
    Type: Application
    Filed: April 25, 2007
    Publication date: July 30, 2009
    Applicant: BANYU PHARMACEUTICAL CO., LTD.
    Inventors: Tetsuya Kato, Nobuhiko Kawanishi, Takashi Mita, Keita Nagai, Katsumasa Nonoshita, Mitsuru Ohkubo
  • Publication number: 20090149470
    Abstract: The present invention relates to a compound represented by the general formula (I): wherein m1 and m2 are 1, 2, or 3; n1 and n2 are 0 or 1; i is an integer of any of 1 to m1; j is an integer of 1 to m2; R is aryl, heteroaryl, or cycloalkyl any of which may be substituted; Rai and Rai? is hydrogen atom, etc. and Rbj and Rbj? is hydrogen atom, etc.; Rc, Rd, and Re are hydrogen atom, etc; X1 is CH, CX1a, or N; X2 is CH, N, etc.; X3 is CH, N, etc.; X4 is CH or N; Y1, Y2, and Y3 are each independently CH or N; Z1 and Z2 are each independently CH or N; W is a 5-membered aromatic heterocyclic group such as pyrazolyl, thiazolyl, etc., or a pharmaceutically acceptable salt or ester thereof; a pharmaceutical composition or antitumor agent containing the same; and combinations of the antitumor agent with other antitumor agent(s).
    Type: Application
    Filed: December 3, 2008
    Publication date: June 11, 2009
    Inventors: Mitsuru Ohkubo, Tetsuya Kato, Nobuhiko Kawanishi, Takashi Mita, Toshiyasu Shimomura
  • Publication number: 20090137597
    Abstract: A quinoxalinone derivative of the formula (I): or a pharmaceutically acceptable salt or ester thereof, wherein; X is NH, S or the like; Y is O or the like; the partial structure is, for example, the formula: B1, B2, . . . , Bn?1 and Bn, (in which n is 4, 5 or 6) are each independently CH, N or the like; B?1, B?2, . . . , B?n?1 and B?n (in which n is 4, 5 or 6) are each independently hydrogen or the like; and R is hydrogen, lower alkyl or the like.
    Type: Application
    Filed: April 21, 2008
    Publication date: May 28, 2009
    Inventors: Hiroshi Hirai, Nobuhiko Kawanishi, Masaaki Hirose, Tetsuya Sugimoto, Kaori Kamijyo, Jun Shibata, Kouta Masutani