Patents by Inventor Jay-Fei CHENG
Jay-Fei CHENG 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).
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Publication number: 20210032207Abstract: The present invention provides a compound represented by the formula (T) wherein X is a hydrogen atom or a fluorine atom; R is a hydrogen atom or alkyl; R1 is (1) cyclopropyl optionally substituted by 1 to 3 halogen atoms or (2) phenyl optionally substituted by 1 to 3 halogen atoms; R2 is alkyl, alkoxy, haloalkoxy, a halogen atom, cyano, etc.; and R3 is 7-oxo-7,8-dihydro-1,8-naphthyridinyl, 3-pyridyl, etc., or a salt thereof. The compound of the present invention has excellent antimicrobial activity against Clostridium difficile and is useful for the prevention or treatment of intestinal infection such as Clostridium difficile-associated diarrhea.Type: ApplicationFiled: October 19, 2020Publication date: February 4, 2021Applicant: OTSUKA PHARMACEUTICAL CO., LTD.Inventors: Mamuti ABUDUSAIMI, Fangguo YE, Jiangqin SUN, Hisashi MIYAMOTO, Jay-Fei CHENG, Daisuke OKA
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Publication number: 20200055823Abstract: The present invention provides a compound represented by the formula (I) wherein X is a hydrogen atom or a fluorine atom; R is a hydrogen atom or alkyl; R1 is (1) cyclopropyl optionally substituted by 1 to 3 halogen atoms or (2) phenyl optionally substituted by 1 to 3 halogen atoms; R2 is alkyl, alkoxy, haloalkoxy, a halogen atom, cyano, etc.; and R3 is 7-oxo-7,8-dihydro-1,8-naphthyridinyl, 3-pyridyl, etc., or a salt thereof. The compound of the present invention has excellent antimicrobial activity against Clostridium difficile and is useful for the prevention or treatment of intestinal infection such as Clostridium difficile-associated diarrhea.Type: ApplicationFiled: October 22, 2019Publication date: February 20, 2020Inventors: Mamuti ABUDUSAIMI, Fangguo YE, Jiangqin SUN, Hisashi MIYAMOTO, Jay-Fei CHENG, Daisuke OKA
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Publication number: 20190077762Abstract: The present invention provides a compound represented by the formula (I) wherein X is a hydrogen atom or a fluorine atom; R is a hydrogen atom or alkyl; R1 is (1) cyclopropyl optionally substituted by 1 to 3 halogen atoms or (2) phenyl optionally substituted by 1 to 3 halogen atoms; R2 is alkyl, alkoxy, haloalkoxy, a halogen atom, cyano, etc.; and R3 is 7-oxo-7,8-dihydro-1,8-naphthyridinyl, 3-pyridyl, etc., or a salt thereof. The compound of the present invention has excellent, antimicrobial activity against Clostridium difficile and is useful for the prevention or treatment of intestinal infection such as Clostridium difficile-associated diarrhea.Type: ApplicationFiled: November 9, 2018Publication date: March 14, 2019Inventors: Mamuti ABUDUSAIMI, Fangguo YE, Jiangqin SUN, Hisashi MIYAMOTO, Jay-Fei CHENG, Daisuke OKA
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Publication number: 20170362180Abstract: The present invention provides a compound represented by the formula (I) wherein X is a hydrogen atom or a fluorine atom; R is a hydrogen atom or alkyl; R1 is (1) cyclopropyl optionally substituted by 1 to 3 halogen atoms or (2) phenyl optionally substituted by 1 to 3 halogen atoms; R2 is alkyl, alkoxy, haloalkoxy, a halogen atom, cyano, etc.; and R3 is 7-oxo-7,8-dihydro-1,8-naphthyridinyl, 3-pyridyl, etc., or a salt thereof. The compound of the present invention has excellent antimicrobial activity against Clostridium difficile and is useful for the prevention or treatment of intestinal infection such as Clostridium difficile-associated diarrhea.Type: ApplicationFiled: August 30, 2017Publication date: December 21, 2017Inventors: Mamuti ABUDUSAIMI, Fangguo YE, Jiangqin SUN, Hisashi MIYAMOTO, Jay-Fei CHENG, Daisuke OKA
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Publication number: 20160340314Abstract: The present invention provides a compound represented by the formula (I) wherein X is a hydrogen atom or a fluorine atom; R is a hydrogen atom or alkyl; R1 is (1) cyclopropyl optionally substituted by 1 to 3 halogen atoms or (2) phenyl optionally substituted by 1 to 3 halogen atoms; R2 is alkyl, alkoxy, haloalkoxy, a halogen atom, cyano, etc.; and R3 is 7-oxo-7,8-dihydro-1,8-naphthyridinyl, 3-pyridyl, etc., or a salt thereof. The compound of the present invention has excellent antimicrobial activity against Clostridium difficile and is useful for the prevention or treatment of intestinal infection such as Clostridium difficile-associated diarrhea.Type: ApplicationFiled: August 1, 2016Publication date: November 24, 2016Inventors: Mamuti ABUDUSAIMI, Fangguo YE, Jiangqin SUN, Hisashi MIYAMOTO, Jay-Fei CHENG, Daisuke OKA
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Patent number: 9440951Abstract: The present invention provides a compound represented by the formula (I) wherein X is a hydrogen atom or a fluorine atom; R is a hydrogen atom or alkyl; R1 is (1) cyclopropyl optionally substituted by 1 to 3 halogen atoms or (2) phenyl optionally substituted by 1 to 3 halogen atoms; R2 is alkyl, alkoxy, haloalkoxy, a halogen atom, cyano, etc.; and R3 is 7-oxo-7,8-dihydro-1,8-naphthyridinyl, 3-pyridyl, etc., or a salt thereof. The compound of the present invention has excellent antimicrobial activity against Clostridium difficile and is useful for the prevention or treatment of intestinal infection such as Clostridium difficile-associated diarrhea.Type: GrantFiled: May 11, 2015Date of Patent: September 13, 2016Assignee: OTSUKA PHARMACEUTICAL CO., LTDInventors: Mamuti Abudusaimi, Fangguo Ye, Jiangqin Sun, Hisashi Miyamoto, Jay-Fei Cheng, Daisuke Oka
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Publication number: 20150239865Abstract: The present invention provides a compound represented by the formula (I) wherein X is a hydrogen atom or a fluorine atom; R is a hydrogen atom or alkyl; R1 is (1) cyclopropyl optionally substituted by 1 to 3 halogen atoms or (2) phenyl optionally substituted by 1 to 3 halogen atoms; R2 is alkyl, alkoxy, haloalkoxy, a halogen atom, cyano, etc.; and R3 is 7-oxo-7,8-dihydro-1,8-naphthyridinyl, 3-pyridyl, etc., or a salt thereof. The compound of the present invention has excellent antimicrobial activity against Clostridium difficile and is useful for the prevention or treatment of intestinal infection such as Clostridium difficile-associated diarrhea.Type: ApplicationFiled: May 11, 2015Publication date: August 27, 2015Inventors: Mamuti Abudusaimi, Fangguo Ye, Jiangqin Sun, Hisashi Miyamoto, Jay-Fei Cheng, Daisuke Oka
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Patent number: 9067887Abstract: The present invention provides a compound represented by the formula (I) wherein X is a hydrogen atom or a fluorine atom; R is a hydrogen atom or alkyl; R1 is (1) cyclopropyl optionally substituted by 1 to 3 halogen atoms or (2) phenyl optionally substituted by 1 to 3 halogen atoms; R2 is alkyl, alkoxy, haloalkoxy, a halogen atom, cyano, etc.; and R3 is 7-oxo-7,8-dihydro-1,8-naphthyridinyl, 3-pyridyl, etc., or a salt thereof. The compound of the present invention has excellent antimicrobial activity against Clostridium difficile and is useful for the prevention or treatment of intestinal infection such as Clostridium difficile-associated diarrhea.Type: GrantFiled: February 28, 2014Date of Patent: June 30, 2015Assignee: OTSUKA PHARMACEUTICAL CO., LTDInventors: Mamuti Abudusaimi, Fangguo Ye, Jiangqin Sun, Hisashi Miyamoto, Jay-Fei Cheng, Daisuke Oka
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Publication number: 20150005287Abstract: The present invention provides a compound represented by the formula (I) wherein X is a hydrogen atom or a fluorine atom; R is a hydrogen atom or alkyl; R1 is (1) cyclopropyl optionally substituted by to 3 halogen atoms or (2) phenyl optionally substituted by 1 to 3 halogen atoms; R2 is alkyl, alkoxy, haloalkoxy, a halogen atom, cyano, etc.; and R3 is 7-oxo-7,8-dihydro-1,8-naphthyridinyl, 3-pyridyl, etc., or a salt thereof. The compound of the present invention has excellent antimicrobial activity against Clostridium difficile and is useful for the prevention or treatment of intestinal infection such as Clostridium difficile-associated diarrhea.Type: ApplicationFiled: February 28, 2014Publication date: January 1, 2015Inventors: Mamuti ABUDUSAIMI, Fangguo YE, Jiangqin SUN, Hisashi MIYAMOTO, Jay-Fei CHENG, Daisuke OKA
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Publication number: 20140179675Abstract: The present invention provides a compound represented by the formula (I) wherein X is a hydrogen atom or a fluorine atom; R is a hydrogen atom or alkyl; R1 is (1) cyclopropyl optionally substituted by 1 to 3 halogen atoms or (2) phenyl optionally substituted by 1 to 3 halogen atoms; R2 is alkyl, alkoxy, haloalkoxy, a halogen atom, cyano, etc.; and R3 is 7-oxo-7,8-dihydro-1,8-naphthyridinyl, 3-pyridyl, etc., or a salt thereof. The compound of the present invention has excellent antimicrobial activity against Clostridium difficile and is useful for the prevention or treatment of intestinal infection such as Clostridium difficile-associated diarrhea.Type: ApplicationFiled: February 28, 2014Publication date: June 26, 2014Applicant: OTSUKA PHARMACEUTICAL CO., LTD.Inventors: Mamuti ABUDUSAIMI, Fangguo YE, Jiangqin SUN, Hisashi MIYAMOTO, Jay-Fei CHENG, Daisuke OKA