Patents by Inventor Toshiyuki Konosu

Toshiyuki Konosu 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: 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: 7829580
    Abstract: A compound having the general formula (I) wherein R1 represents C1-C6 alkyl, etc., R2 represents hydrogen, C2-C7 alkanoyl, C7-C11 arylcarbonyl, the formula R4—(CH2)l—, etc., R3 represents C6-C10 aryl, etc., X1, X2, X3, X4 and X5 each independently represents hydrogen, halogen, etc., and n represents an integer of 0 to 2, pharmacologically acceptable salts thereof or prodrugs thereof. They have excellent inhibition of platelet activation, etc. and are useful as a prophylactic or therapeutic agents for diseases related to thrombus or embolus formation.
    Type: Grant
    Filed: May 26, 2006
    Date of Patent: November 9, 2010
    Assignee: Sankyo Company, Ltd.
    Inventors: Tomio Kimura, Naoki Tanaka, Atsuhiro Sugidachi, Toshiyuki Konosu
  • 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: 20060270706
    Abstract: A compound having the general formula (I) wherein R1 represents C1-C6 alkyl, etc., R2 represents hydrogen, C2-C7 alkanoyl, C7-C11 arylcarbonyl, the formula R4—(CH2)1—, etc., R3 represents C6-C10 aryl, etc., X1, X2, X3, X4 and X5 each independently represents hydrogen, halogen, etc., and n represents an integer of 0 to 2, pharmacologically acceptable salts thereof or prodrugs thereof. They have excellent inhibition of platelet activation, etc. and are useful as a prophylactic or therapeutic agents for diseases related to thrombus or embolus formation.
    Type: Application
    Filed: May 26, 2006
    Publication date: November 30, 2006
    Inventors: Tomio Kimura, Naoki Tanaka, Atsuhiro Sugidachi, Toshiyuki Konosu
  • 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
  • Patent number: 6653330
    Abstract: A compound of formula (I) or a pharmacologically acceptable prodrug or salt thereof which exhibits excellent antifungal activity: wherein Ar1 represents a phenyl group or the like; Ar2 represents a phenylene group or the like. X represents a sulfur atom or a methylene group. R1 represents a hydrogen atom or a C1-3 alkyl group; R2 represents a hydrogen atom or a C1-3 alkyl group; and R3 represents an optionally substituted C6-10 aryl group or the like. Fungal infections may be prevented and/or treated by administering said compound (I) or said prodrug or salt thereof.
    Type: Grant
    Filed: September 27, 2002
    Date of Patent: November 25, 2003
    Assignee: Sankyo Company, Limited
    Inventors: Takuya Uchida, Toshiyuki Konosu
  • Publication number: 20030176480
    Abstract: A compound of formula (I) or a pharmacologically acceptable prodrug or salt thereof which exhibits excellent antifungal activity: 1
    Type: Application
    Filed: September 27, 2002
    Publication date: September 18, 2003
    Applicant: SANKYO COMPANY, LIMITED
    Inventors: Takuya Uchida, Toshiyuki Konosu
  • Patent number: 6392082
    Abstract: Compounds of the following formula (I) and pharmaceutically acceptable esters and salts thereof: Ar is phenyl group which may optionally be substituted by from 1 to 3 substituents selected from the group consisting of halogen atoms and trifluoromethyl groups. Said compounds (and pharmaceutically acceptable esters and salts thereof) have excellent antifungal activity.
    Type: Grant
    Filed: July 18, 2001
    Date of Patent: May 21, 2002
    Assignee: Sankyo Company, Limited
    Inventors: Toshiyuki Konosu, Sadao Oida, Makoto Mori, Takuya Uchida
  • Patent number: 6391903
    Abstract: Compounds of the following formula (I) and pharmaceutically acceptable esters and salts thereof: Ar is a phenyl group which may optionally be substituted by from 1 to 3 substituents selected from the group consisting of halogen atoms and trifluoromethyl groups. Said compounds (and pharmaceutically acceptable esters and salts thereof) have excellent antifungal activity.
    Type: Grant
    Filed: September 6, 2000
    Date of Patent: May 21, 2002
    Assignee: Sankyo Company, Limited
    Inventors: Toshiyuki Konosu, Sadao Oida, Makoto Mori, Takuya Uchida, Satoshi Ohya, Akihiko Nakagawa
  • Patent number: 6337403
    Abstract: Compounds of the following formula (I) and pharmaceutically acceptable esters and salts thereof: Ar is a phenyl group which may optionally be substituted by from 1 to 3 substituents selected from the group consisting of halogen atoms and trifluoromethyl groups. The compounds (and pharmaceutically acceptable esters and salts thereof) have excellent antifungal activity.
    Type: Grant
    Filed: June 1, 2001
    Date of Patent: January 8, 2002
    Assignee: Sankyo Company, Limited
    Inventors: Toshiyuki Konosu, Sadao Oida, Makoto Mori, Takuya Uchida, Satoshi Ohya, Akihiko Nakagawa
  • Patent number: 6306880
    Abstract: A triazole compound having the formula: wherein Ar1 represents a phenyl group which may be substituted; Ar2 represents a phenyl group which may be substituted; R0 represents a hydrogen atom or a lower alkyl; R1 represents a lower alkyl; R2 to R5 each represnet a hydrogen atom or an unsubstituted or halo substituted alkyl; n represnets 0 to 2; p represents 0 or 1; q, r and s each represent 0 to 2; A represents a 4- to 7-membered carbon ring or a 4- to 7-membered heterocyclic, not including 1,3-dioxan-5-yl. The compound of the present invention exhibits an excellent antifungal activity.
    Type: Grant
    Filed: February 1, 1999
    Date of Patent: October 23, 2001
    Assignee: Sankyo Company, Limited
    Inventors: Sadao Oida, Teruo Tanaka, Yawara Tajima, Toshiyuki Konosu, Atsushi Somada, Takeo Miyaoka, Hiroshi Yasuda
  • Publication number: 20010031778
    Abstract: A compound having the formula: 1
    Type: Application
    Filed: February 27, 2001
    Publication date: October 18, 2001
    Applicant: SANKYO COMPANY LIMITED
    Inventors: Sadao Oida, Teruo Tanaka, Yawara Tajima, Toshiyuki Konosu, Atsushi Somada, Takeo Miyaoka, Hiroshi Yasuda
  • Publication number: 20010031768
    Abstract: A compound having the formula: 1
    Type: Application
    Filed: February 27, 2001
    Publication date: October 18, 2001
    Applicant: SANKYO COMPANY LIMITED
    Inventors: Sadao Oida, Teruo Tanaka, Yawara Tajima, Toshiyuki Konosu, Atsushi Somada, Takeo Miyaoka, Hiroshi Yasuda
  • Patent number: 6300357
    Abstract: A triazole compound having the formula: wherein Ar1 represents a phenyl group which may be substituted, Ar2 represents a heterocyclic group which may be substituted, R0 represents a hydrogen atom or a lower alkyl; R1 represents a lower alkyl; R2 to R5 each represent a hydrogen atom or an unsubstituted or halo substituted alkyl; n represents 0 to 2; p represents 0 or 1; q, r and s each represent 0 to 2; A represents a 4- to 7-membered carbon ring or a 4- to 7-membered heterocyclic group. The compound of the present invention exhibits an excellent antifungal activity.
    Type: Grant
    Filed: February 1, 1999
    Date of Patent: October 9, 2001
    Assignee: Sankyo Company, Limited
    Inventors: Sadao Oida, Teruo Tanaka, Yawara Tajima, Toshiyuki Konosu, Atsushi Somada, Takeo Miyaoka, Hiroshi Yasuda
  • Patent number: 5977152
    Abstract: A triazole compound having the formula: ##STR1## wherein Ar.sup.1 represents an optionally substituted phenyl, Ar.sup.2 represents an optionally substituted phenyl, R.sup.0 represents a hydrogen atom or a lower alkyl; R.sup.1 represents a lower alkyl; R.sup.2 to R.sup.5 represent a hydrogen atom or an unsubstituted or halo substituted alkyl, n represents 0 to 2; p represents 0 or 1; q, r and s each represent 0 to 2; and A represents a 1,3-dioxan-5-yl. The triazole compound of the present invention exhibits an excellent antifungal activity.
    Type: Grant
    Filed: October 6, 1997
    Date of Patent: November 2, 1999
    Assignee: Sankyo Company, Limited
    Inventors: Sadao Oida, Teruo Tanaka, Yawara Tajima, Toshiyuki Konosu, Atsushi Somada, Takeo Miyaoka, Hiroshi Yasuda