Patents by Inventor Yoshiko Kagoshima

Yoshiko Kagoshima 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: 10399968
    Abstract: Problem to be Solved There is a need for a new antibiotic having a novel mechanism of action which exhibit strong antibacterial activity not only against sensitive bacteria but also against resistant bacteria thereof, and at the same time possesses excellent solubility an a safety profile amenable to human use. Solution to the Problem As a result of intensive research, the present inventors have found that a compound represented by general formula (I), a stereoisomer, or a pharmaceutically acceptable salt thereof inhibits DNA gyrase GyrB subunit and/or topoisomerase IV ParE subunit possesses excellent solubility and a safety profile for use in humans for the treatment of bacterial infectious diseases.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: September 3, 2019
    Assignee: Daiichi Sankyo Company, Limited
    Inventors: Manoj Kumar Khera, Tarun Mathur, Jitendra A. Sattigeri, Nobuhisa Masuda, Tsuyoshi Soneda, Yoshiko Kagoshima, Toshiyuki Konosu, Tetsuya Suzuki, Makoto Yamaoka, Ryo Itooka
  • Publication number: 20180327399
    Abstract: Problem to be Solved There is a need for a new antibiotic having a novel mechanism of action which exhibit strong antibacterial activity not only against sensitive bacteria but also against resistant bacteria thereof, and at the same time possesses excellent solubility an a safety profile amenable to human use. Solution to the Problem As a result of intensive research, the present inventors have found that a compound represented by general formula (I), a stereoisomer, or a pharmaceutically acceptable salt thereof inhibits DNA gyrase GyrB subunit and/or topoisomerase IV ParE subunit possesses excellent solubility and a safety profile for use in humans for the treatment of bacterial infectious diseases.
    Type: Application
    Filed: September 28, 2016
    Publication date: November 15, 2018
    Applicant: Daiichi Sankyo Company, Limited
    Inventors: Manoj Kumar Khera, Tarun Mathur, Jitendra A. Sattigeri, Nobuhisa Masuda, Tsuyoshi Soneda, Yoshiko Kagoshima, Toshiyuki Konosu, Tetsuya Suzuki, Makoto Yamaoka, Ryo Itooka
  • Patent number: 10040791
    Abstract: It has been found that a compound of the general formula (I) having an isoxazole skeleton has excellent inhibitory activity against mutant IDH1 protein and inhibits the production of 2-HG by this protein, while the compound is also capable of effectively inhibiting the growth of various tumors expressing the protein. In the formula, R1, R2, R3, Y, and Z are as defined in claim 1.
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: August 7, 2018
    Assignees: Daiichi Sankyo Company, Limited, National Cancer Center
    Inventors: Shoichi Saito, Masao Itoh, Tetsunori Fujisawa, Hironao Saito, Yohei Kiyotsuka, Hideaki Watanabe, Hironori Matsunaga, Yoshiko Kagoshima, Tetsuya Suzuki, Yoko Ogawara, Kazuo Kitabayashi
  • Publication number: 20170313696
    Abstract: It has been found that a compound of the general formula (I) having an isoxazole skeleton has excellent inhibitory activity against mutant IDH1 protein and inhibits the production of 2-HG by this protein, while the compound is also capable of effectively inhibiting the growth of various tumors expressing the protein. In the formula, R1, R2, R3, Y, and Z are as defined in claim 1.
    Type: Application
    Filed: October 1, 2015
    Publication date: November 2, 2017
    Applicants: Daiichi Sankyo Company, Limited, National Cancer Center
    Inventors: Shoichi Saito, Masao Itoh, Tetsunori Fujisawa, Hironao Saito, Yohei Kiyotsuka, Hideaki Watanabe, Hironori Matsunaga, Yoshiko Kagoshima, Tetsuya Suzuki, Yoko Ogawara, Kazuo Kitabayashi
  • Patent number: 9751887
    Abstract: The present invention is intended to provide a compound or a pharmacologically acceptable salt thereof which is useful in the treatment of a tumor through its ROS1 kinase enzyme activity inhibitory effect and NTRK kinase enzyme inhibitory effect. The present invention provides a compound having an imidazo[1,2-b]pyridazine structure represented by the general formula (I) or a pharmacologically acceptable salt thereof, and a pharmaceutical composition comprising the compound. In the formula, R1, G, T, Y1, Y2, Y3, and Y4 are as defined herein.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: September 5, 2017
    Assignee: Daiichi Sankyo Company, Limited
    Inventors: Yasuyuki Takeda, Kenji Yoshikawa, Yoshiko Kagoshima, Yuko Yamamoto, Ryoichi Tanaka, Yuichi Tominaga, Masaki Kiga, Yoshito Hamada
  • Publication number: 20160046639
    Abstract: The present invention is intended to provide a compound or a pharmacologically acceptable salt thereof which is useful in the treatment of a tumor through its ROS1 kinase enzyme activity inhibitory effect and NTRK kinase enzyme inhibitory effect. The present invention provides a compound having an imidazo[1,2-b]pyridazine structure represented by the general formula (I) or a pharmacologically acceptable salt thereof, and a pharmaceutical composition comprising the compound. In the formula, R1, G, T, Y1, Y2, Y3, and Y4 are as defined herein.
    Type: Application
    Filed: October 29, 2015
    Publication date: February 18, 2016
    Applicant: Daiichi Sankyo Company, Limited
    Inventors: Yasuyuki Takeda, Kenji Yoshikawa, Yoshiko Kagoshima, Yuko Yamamoto, Ryoichi Tanaka, Yuichi Tominaga, Masaki Kiga, Yoshito Hamada
  • Patent number: 9187489
    Abstract: The present invention is intended to provide a compound or a pharmacologically acceptable salt thereof which is useful in the treatment of a tumor through its ROS1 kinase enzyme activity inhibitory effect and NTRK kinase enzyme inhibitory effect. The present invention provides a compound having an imidazo[1,2-b]pyridazine structure represented by the general formula (I) or a pharmacologically acceptable salt thereof, and a pharmaceutical composition comprising the compound. In the formula, R1, G, T, Y1, Y2, Y3, and Y4 are as defined herein.
    Type: Grant
    Filed: June 3, 2013
    Date of Patent: November 17, 2015
    Assignee: Daiichi Sankyo Company, Limited
    Inventors: Yasuyuki Takeda, Kenji Yoshikawa, Yoshiko Kagoshima, Yuko Yamamoto, Ryoichi Tanaka, Yuichi Tominaga, Masaki Kiga, Yoshito Hamada
  • Publication number: 20150051190
    Abstract: The present invention is intended to provide a compound or a pharmacologically acceptable salt thereof which is useful in the treatment of a tumor through its ROS1 kinase enzyme activity inhibitory effect and NTRK kinase enzyme inhibitory effect. The present invention provides a compound having an imidazo[1,2-b]pyridazine structure represented by the general formula (I) or a pharmacologically acceptable salt thereof, and a pharmaceutical composition comprising the compound. In the formula, R1, G, T, Y1, Y2, Y3, and Y4 are as defined herein.
    Type: Application
    Filed: June 3, 2013
    Publication date: February 19, 2015
    Applicant: Daiichi Sankyo Company, Limited
    Inventors: Yasuyuki Takeda, Kenji Yoshikawa, Yoshiko Kagoshima, Yuko Yamamoto, Ryoichi Tanaka, Yuichi Tominaga, Masaki Kiga, Yoshito Hamada
  • Patent number: 8927588
    Abstract: To develop an antibiotic having a novel mechanism of action, the present inventors have searched for a compound that has weak cytotoxicity, the physical property of high solubility in water, the effect of inhibiting both DNA gyrase GyrB and topoisomerase IV ParE subunits, and sufficient antibacterial activity. As a result, the present inventors have completed the present invention by finding that a compound of the present invention represented by the general formula (1), a pharmacologically acceptable salt thereof, and a prodrug thereof have desirable properties. The present invention provides a pharmaceutical composition (particularly, a preventive or therapeutic composition for infectious disease) comprising a compound represented by the formula (1), a pharmacologically acceptable salt thereof, or a prodrug thereof as an active ingredient.
    Type: Grant
    Filed: September 13, 2013
    Date of Patent: January 6, 2015
    Assignee: Daiichi Sankyo Company, Limited
    Inventors: Tsuyoshi Soneda, Hiroshi Takeshita, Yoshiko Kagoshima, Yuko Yamamoto, Takafumi Hosokawa, Toshiyuki Konosu, Nobuhisa Masuda, Takuya Uchida, Issei Achiwa, Junichi Kuroyanagi, Tetsunori Fujisawa, Aki Yokomizo, Tetsuji Noguchi
  • Publication number: 20140073622
    Abstract: To develop an antibiotic having a novel mechanism of action, the present inventors have searched for a compound that has weak cytotoxicity, the physical property of high solubility in water, the effect of inhibiting both DNA gyrase GyrB and topoisomerase IV ParE subunits, and sufficient antibacterial activity. As a result, the present inventors have completed the present invention by finding that a compound of the present invention represented by the general formula (1), a pharmacologically acceptable salt thereof, and a prodrug thereof have desirable properties. The present invention provides a pharmaceutical composition (particularly, a preventive or therapeutic composition for infectious disease) comprising a compound represented by the formula (1), a pharmacologically acceptable salt thereof, or a prodrug thereof as an active ingredient.
    Type: Application
    Filed: September 13, 2013
    Publication date: March 13, 2014
    Applicant: Daiichi Sankyo Company, Limited
    Inventors: Tsuyoshi Soneda, Hiroshi Takeshita, Yoshiko Kagoshima, Yuko Yamamoto, Takafumi Hosokawa, Toshiyuki Konosu, Nobuhisa Masuda, Takuya Uchida, Issei Achiwa, Junichi Kuroyanagi, Tetsunori Fujisawa, Aki Yokomizo, Tetsuji Noguchi
  • Patent number: 8536197
    Abstract: An antibiotic compound having a novel mechanism of action, weak cytotoxicity, high solubility in water, effective in inhibiting both DNA gyrase GyrB and topoisomerase IV ParE subunits, and having antibacterial activity.
    Type: Grant
    Filed: December 26, 2008
    Date of Patent: September 17, 2013
    Assignee: Daiichi Sankyo Company, Limited
    Inventors: Tsuyoshi Soneda, Hiroshi Takeshita, Yoshiko Kagoshima, Yuko Yamamoto, Takafumi Hosokawa, Toshiyuki Konosu, Nobuhisa Masuda, Takuya Uchida, Issei Achiwa, Junichi Kuroyanagi, Tetsunori Fujisawa, Aki Yokomizo, Tetsuji Noguchi
  • Publication number: 20100311966
    Abstract: An antibiotic compound having a novel mechanism of action, weak cytotoxicity, high solubility in water, effective in inhibiting both DNA gyrase GyrB and topoisomerase IV ParE subunits, and having antibacterial activity.
    Type: Application
    Filed: December 26, 2008
    Publication date: December 9, 2010
    Applicant: DAIICHI SANKYO COMPANY, LIMITED
    Inventors: Tsuyoshi Soneda, Hiroshi Takeshita, Yoshiko Kagoshima, Yuko Yamamoto, Takafumi Hosokawa, Toshiyuki Konosu, Nobuhisa Masuda, Takuya Uchida, Issei Achiwa, Junichi Kuroyanagi, Tetsunori Fujisawa, Aki Yokomizo, Tetsuji Noguchi
  • Patent number: 7230023
    Abstract: A triazole compound of the formula (I) or a pharmacologically salt thereof: wherein X represents a group of formula X—OH which has antifungal activity, L represents an -(adjacently substituted C6-C10 aryl)-CH2 group and R represents a —P(?O)(OH)2 group.
    Type: Grant
    Filed: August 20, 2003
    Date of Patent: June 12, 2007
    Assignee: Sankyo Company, Limited
    Inventors: Makoto Mori, Yoshiko Kagoshima, Takuya Uchida, Toshiyuki Konosu, Takahiro Shibayama
  • Publication number: 20040198790
    Abstract: A triazole compound of the formula (I) or a pharmacologically salt thereof: 1
    Type: Application
    Filed: August 20, 2003
    Publication date: October 7, 2004
    Applicant: SANKYO COMPANY, LIMITED
    Inventors: Makoto Mori, Yoshiko Kagoshima, Takuya Uchida, Toshiyuki Konosu, Takahiro Shibayama