Patents by Inventor Rieko Takano
Rieko Takano 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: 9051255Abstract: To find a therapeutic and/or prophylactic agent for gastrointestinal disorders and so on, the agent having excellent activity and high safety. A compound represented by the following general formula (I) or a pharmacologically acceptable salt thereof. In the formula, A represents an optionally substituted phenylene group; B represents an optionally substituted 4- to 10-membered heterocyclic group, an optionally substituted C6-C10 aryl group, or an optionally substituted C3-C10 cycloalkyl group; R1 represents a hydrogen atom or a C1-C3 alkyl group; R2 represents a hydrogen atom or a C1-C3 alkyl group; R3 represents a C1-C6 alkyl group, a C3-C10 cycloalkyl group, a C1-C3 alkoxy C1-C3 alkyl group, or a C1-C3 hydroxyalkyl group; R4 represents a hydrogen atom, a C1-C6 alkyl group, or a halogen atom; n represents an integer of 1 to 4; and X represents methylene, —O—, —NH—, —N(C1-C3 alkyl)-, —C(?O)—, —S—, —S(O)—, —S(O2)—, or a single bond.Type: GrantFiled: December 27, 2013Date of Patent: June 9, 2015Assignee: Daiichi Sankyo Company, LimitedInventors: Narihiro Toda, Rieko Takano, Takeshi Shida, Takahiro Katagiri, Mitsuhiro Iwamoto, Shinji Ashida, Mami Yamazaki
-
Publication number: 20140221392Abstract: To find a therapeutic and/or prophylactic agent for gastrointestinal disorders and so on, the agent having excellent activity and high safety. A compound represented by the following general formula (I) or a pharmacologically acceptable salt thereof. In the formula, A represents an optionally substituted phenylene group; B represents an optionally substituted 4- to 10-membered heterocyclic group, an optionally substituted C6-C10 aryl group, or an optionally substituted C3-C10 cycloalkyl group; R1 represents a hydrogen atom or a C1-C3 alkyl group; R2 represents a hydrogen atom or a C1-C3 alkyl group; R3 represents a C1-C6 alkyl group, a C3-C10 cycloalkyl group, a C1-C3 alkoxy C1-C3 alkyl group, or a C1-C3 hydroxyalkyl group; R4 represents a hydrogen atom, a C1-C6 alkyl group, or a halogen atom; n represents an integer of 1 to 4; and X represents methylene, —O—, —NH—, —N(C1-C3 alkyl)-, —C(?O)—, —S—, —S(O)—, —S(O2)—, or a single bond.Type: ApplicationFiled: December 27, 2013Publication date: August 7, 2014Applicant: DAIICHI SANKYO COMPANY, LIMITEDInventors: Narihiro Toda, Rieko Takano, Takeshi Shida, Takahiro Katagiri, Mitsuhiro Iwamoto, Shinji Ashida, Mami Yamazaki
-
Publication number: 20140221391Abstract: To find a therapeutic and/or prophylactic agent for gastrointestinal disorders and so on, the agent having excellent activity and high safety. A compound represented by the following general formula (I) or a pharmacologically acceptable salt thereof. In the formula, A represents an optionally substituted phenylene group; B represents an optionally substituted 4- to 10-membered heterocyclic group, an optionally substituted C6-C10 aryl group, or an optionally substituted C3-C10 cycloalkyl group; R1 represents a hydrogen atom or a C1-C3 alkyl group; R2 represents a hydrogen atom or a C1-C3 alkyl group; R3 represents a C1-C6 alkyl group, a C3-C10 cycloalkyl group, a C1-C3 alkoxy C1-C3 alkyl group, or a C1-C3 hydroxyalkyl group; R4 represents a hydrogen atom, a C1-C6 alkyl group, or a halogen atom; n represents an integer of 1 to 4; and X represents methylene, —O—, —NH—, —N(C1-C3 alkyl)-, —C(?O)—, —S—, —S(O)—, —S(O2)—, or a single bond.Type: ApplicationFiled: December 27, 2013Publication date: August 7, 2014Applicant: DAIICHI SANKYO COMPANY, LIMITEDInventors: Narihiro Toda, Rieko Takano, Takeshi Shida, Takahiro Katagiri, Mitsuhiro Iwamoto, Shinji Ashida, Mami Yamazaki
-
Patent number: 8710060Abstract: To find a therapeutic and/or prophylactic agent for gastrointestinal disorders and so on, the agent having excellent activity and high safety. A compound represented by the following general formula (I) or a pharmacologically acceptable salt thereof. In the formula, A represents an optionally substituted phenylene group; B represents an optionally substituted 4- to 10-membered heterocyclic group, an optionally substituted C6-C10 aryl group, or an optionally substituted C3-C10 cycloalkyl group; R1 represents a hydrogen atom or a C1-C3 alkyl group; R2 represents a hydrogen atom or a C1-C3 alkyl group; R3 represents a C1-C6 alkyl group, a C3-C10 cycloalkyl group, a C1-C3 alkoxy C1-C3 alkyl group, or a C1-C3 hydroxyalkyl group; R4 represents a hydrogen atom, a C1-C6 alkyl group, or a halogen atom; n represents an integer of 1 to 4; and X represents methylene, —O—, —NH—, —N(C1-C3 alkyl)-, —C(?O)—, —S—, —S(O)—, —S(O2)—, or a single bond.Type: GrantFiled: March 26, 2013Date of Patent: April 29, 2014Assignee: Daiichi Sankyo Company, LimitedInventors: Narihiro Toda, Rieko Takano, Takeshi Shida, Takahiro Katagiri, Mitsuhiro Iwamoto, Shinji Ashida, Mami Yamazaki
-
Publication number: 20130289048Abstract: To find a therapeutic and/or prophylactic agent for gastrointestinal disorders and so on, the agent having excellent activity and high safety. A compound represented by the following general formula (I) or a pharmacologically acceptable salt thereof. In the formula, A represents an optionally substituted phenylene group; B represents an optionally substituted 4- to 10-membered heterocyclic group, an optionally substituted C6-C10 aryl group, or an optionally substituted C3-C10 cycloalkyl group; R1 represents a hydrogen atom or a C1-C3 alkyl group; R2 represents a hydrogen atom or a C1-C3 alkyl group; R3 represents a C1-C6 alkyl group, a C3-C10 cycloalkyl group, a C1-C3 alkoxy C1-C3 alkyl group, or a C1-C3 hydroxyalkyl group; R4 represents a hydrogen atom, a C1-C6 alkyl group, or a halogen atom; n represents an integer of 1 to 4; and X represents methylene, —O—, —NH—, —N(C1-C3 alkyl)-, —C(?O)—, —S—, —S(O)—, —S(O2)—, or a single bond.Type: ApplicationFiled: March 26, 2013Publication date: October 31, 2013Inventors: Narihiro Toda, Rieko Takano, Takeshi Shida, Takahiro Katagiri, Mitsuhiro Iwamoto, Shinji Ashida, Mami Yamazaki
-
Patent number: 8222281Abstract: To find a therapeutic agent and/or a preventive agent for diabetes mellitus or the like having excellent activity and safety. A compound represented by the following general formula (I), or a pharmacologically acceptable salt thereof. In the formula, X represents ?C(R5)- or ?N—; Y represents —O— or —NH—; L represents a bond or a substitutable C1-C3 alkylene group; M represents a substitutable C3-C10 cycloalkyl group, a substitutable C6-C10 aryl group, or a substitutable heterocyclic group; R1 represents a C1-C6 alkyl group, a C3-C10 cycloalkyl group, a C1-C6 haloalkyl group, a C2-C6 alkenyl group, a C2-C6 alkynyl group, a C1-C6 aliphatic acyl group, a C1-C6 alkoxy C1-C6 alkyl group, or a C6-C10 aryl group; and R2, R3, R4, and R5 may be the same or different and each represent a hydrogen atom, a halogen atom, a C1-C3 alkyl group, a C1-C3 haloalkyl group, a C1-C3 alkoxy group, or a nitro group.Type: GrantFiled: September 29, 2010Date of Patent: July 17, 2012Assignee: Daiichi Sankyo Company, LimitedInventors: Narihiro Toda, Masao Yoshida, Rieko Takano, Masahiro Inoue, Takeshi Honda, Koji Matsumoto, Ryutaro Nakashima
-
Publication number: 20110112103Abstract: The present invention provides compounds which promote erythropoietin production.Type: ApplicationFiled: April 21, 2009Publication date: May 12, 2011Applicant: DAIICHI SANKYO COMPANY, LIMITEDInventors: Takeshi Kuribayashi, Hideki Kubota, Takeshi Fukuda, Rieko Takano, Takashi Tsuji, Koji Sasaki, Naoki Tanaka
-
Publication number: 20110053974Abstract: To find a therapeutic agent and/or a preventive agent for diabetes mellitus or the like having excellent activity and safety. A compound represented by the following general formula (I), or a pharmacologically acceptable salt thereof. In the formula, X represents ?C(R5)- or ?N—; Y represents —O— or —NH—; L represents a bond or a substitutable C1-C3 alkylene group; M represents a substitutable C3-C10 cycloalkyl group, a substitutable C6-C10 aryl group, or a substitutable heterocyclic group; R1 represents a C1-C6 alkyl group, a C3-C10 cycloalkyl group, a C1-C6 haloalkyl group, a C2-C6 alkenyl group, a C2-C6 alkynyl group, a C1-C6 aliphatic acyl group, a C1-C6 alkoxy C1-C6 alkyl group, or a C6-C10 aryl group; and R2, R3, R4, and R5 may be the same or different and each represent a hydrogen atom, a halogen atom, a C1-C3 alkyl group, a C1-C3 haloalkyl group, a C1-C3 alkoxy group, or a nitro group.Type: ApplicationFiled: September 29, 2010Publication date: March 3, 2011Applicant: DAIICHI SANKYO COMPANY, LIMITEDInventors: Narihiro TODA, Masao YOSHIDA, Rieko TAKANO, Masahiro INOUE, Takeshi HONDA, Koji MATSUMOTO, Ryutaro NAKASHIMA