Patents by Inventor Akitake Yamaguchi

Akitake Yamaguchi 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).

  • DISPIROPYRROLIDINE DERIVATIVES
    Publication number: 20220106324
    Abstract: A compound that inhibits interaction between murine double minute 2 (Mdm2) protein and p53 protein and exhibits anti-tumor activity is provided. The present invention provides a dispiropyrrolidine derivative represented by the following formula (1), which has various substituents, inhibits interaction between Mdm2 protein and p53 protein and exhibits anti-tumor activity, wherein R1, R2, R3, ring A, and ring B in formula (1) respectively have the same meanings as defined in the specification.
    Type: Application
    Filed: April 19, 2021
    Publication date: April 7, 2022
    Inventors: Yuuichi SUGIMOTO, Kouichi UOTO, Takanori WAKABAYASHI, Masaki MIYAZAKI, Masaki SETOGUCHI, Toru TANIGUCHI, Keisuke YOSHIDA, Akitake YAMAGUCHI, Shoko YOSHIDA
  • Pyridone derivatives
    Patent number: 8933103
    Abstract: Novel compounds or salts thereof, or crystals thereof, which inhibit Axl and are useful for treating diseases caused by Axl hyperfunction, diseases associated with Axl hyperfunction and/or diseases accompanied by Axl hyperfunction are provided. Pyridone derivatives represented by the formula (1) having various substituents or salts thereof, or crystals thereof (where R1, R2, R3, R5, R6, A, W, X and n in the formula (1) are as defined in the specification, respectively) are provided.
    Type: Grant
    Filed: January 30, 2013
    Date of Patent: January 13, 2015
    Assignee: Daiichi Sankyo Company, Limited
    Inventors: Hitoshi Ohki, Masahiro Ota, Kosuke Takeuchi, Hideaki Watanabe, Akitake Yamaguchi, Yoshihiro Shibata, Yuichi Tominaga, Takeshi Jimbo, Keijiro Kobayashi, Katsuhiro Kobayashi, Daisuke Fukatsu
  • DISPIROPYRROLIDINE DERIVATIVES
    Publication number: 20140121196
    Abstract: A compound that inhibits interaction between, murine double minute 2 (Mdm2) protein and p53 protein and exhibits anti-tumor activity is provided. The present invention provides a dispiropyrrolidine derivative represented by the following formula (1), which has various substituents, inhibits interaction between Mdm2 protein and p53 protein and exhibits anti-tumor activity, wherein R1, R2, R3, ring A, and ring B in formula (1) respectively have the same meanings as defined in the specification.
    Type: Application
    Filed: November 14, 2013
    Publication date: May 1, 2014
    Applicant: Daiichi Sankyo Company, Limited
    Inventors: Yuuichi Sugimoto, Kouichi Uoto, Takanori Wakabayashi, Masaki Miyazaki, Masaki Setoguchi, Toru Taniguchi, Keisuke Yoshida, Akitake Yamaguchi, Shoko Yoshida
  • Dispiropyrrolidine derivatives
    Patent number: 8629133
    Abstract: A compound that inhibits interaction between murine double minute 2 (Mdm2) protein and p53 protein and exhibits anti-tumor activity is provided. The present invention provides a dispiropyrrolidine derivative represented by the following formula (1), which has various substituents, inhibits interaction between Mdm2 protein and p53 protein and exhibits anti-tumor activity, wherein R1, R2, R3, ring A, and ring B in formula (1) respectively have the same meanings as defined in the specification.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: January 14, 2014
    Assignee: Daiichi Sankyo Company, Limited
    Inventors: Yuuichi Sugimoto, Kouichi Uoto, Takanori Wakabayashi, Masaki Miyazaki, Masaki Setoguchi, Toru Taniguchi, Keisuke Yoshida, Akitake Yamaguchi, Shoko Yoshida
  • Pyridone Derivatives
    Publication number: 20130281428
    Abstract: Novel compounds or salts thereof, or crystals thereof, which inhibit Axl and are useful for treating diseases caused by Axl hyperfunction, diseases associated with Axl hyperfunction and/or diseases accompanied by Axl hyperfunction are provided. Pyridone derivatives represented by the formula (1) having various substituents or salts thereof, or crystals thereof (where R1, R2, R3, R5, R6, A, W, X and n in the formula (1) are as defined in the specification, respectively) are provided.
    Type: Application
    Filed: January 30, 2013
    Publication date: October 24, 2013
    Inventors: Hitoshi Ohki, Masahiro Ota, Kosuke Takeuchi, Hideaki Watanabe, Akitake Yamaguchi, Yoshihiro Shibata, Yuichi Tominaga, Takeshi Jimbo, Keijiro Kobayashi, Katsuhiro Kobayashi, Daisuke Fukatsu
  • DISPIROPYRROLIDINE DERIVATIVES
    Publication number: 20130165424
    Abstract: A compound that inhibits interaction between murine double minute 2 (Mdm2) protein and p53 protein and exhibits anti-tumor activity is provided. The present invention provides a dispiropyrrolidine derivative represented by the following formula (1), which has various substituents, inhibits interaction between Mdm2 protein and p53 protein and exhibits anti-tumor activity, wherein R1, R2, R3, ring A, and ring B in formula (1) respectively have the same meanings as defined in the specification.
    Type: Application
    Filed: March 9, 2012
    Publication date: June 27, 2013
    Inventors: Yuuichi Sugimoto, Kouichi Uoto, Takanori Wakabayashi, Masaki Miyazaki, Masaki Setoguchi, Toru Taniguchi, Keisuke Yoshida, Akitake Yamaguchi, Shoko Yoshida
  • DISPIROPYRROLIDINE DERIVATIVES
    Publication number: 20120264738
    Abstract: A compound that inhibits interaction between murine double minute 2 (Mdm2) protein and p53 protein and exhibits anti-tumor activity is provided. The present invention provides a dispiropyrrolidine derivative represented by the following formula (1), which has various substituents, inhibits interaction between Mdm2 protein and p53 protein and exhibits anti-tumor activity, wherein R1, R2, R3, ring A, and ring B in formula (1) respectively have the same meanings as defined in the specification.
    Type: Application
    Filed: March 9, 2012
    Publication date: October 18, 2012
    Inventors: Yuuichi Sugimoto, Kouichi Uoto, Takanori Wakabayashi, Masaki Miyazaki, Masaki Setoguchi, Toru Taniguchi, Keisuke Yoshida, Akitake Yamaguchi, Shoko Yoshida