Patents by Inventor Narihiro Toda
Narihiro Toda 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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Patent number: 11628223Abstract: A novel antibody-pyrrolodiazepine derivative and a novel antibody-pyrrolodiazepine derivative conjugate using the same, comprising substituted benzo[e]pyrrolo[1,2-a][1,4]diazepines represented by the [Formula 24], [Formula 25], [Formula 26], and/or [Formula 27].Type: GrantFiled: September 28, 2018Date of Patent: April 18, 2023Assignee: DAIICHI SANKYO COMPANY, LIMITEDInventors: Narihiro Toda, Yusuke Ota, Fuminao Doi, Masaki Meguro, Ichiro Hayakawa, Shinji Ashida, Takeshi Masuda, Takashi Nakada, Mitsuhiro Iwamoto, Naoya Harada, Tomoko Terauchi, Daisuke Okajima, Kensuke Nakamura, Hiroaki Uchida, Hirofumi Hamada
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Publication number: 20230084707Abstract: The present invention provides a novel antibody-pyrrolodiazepine derivative and a novel antibody-pyrrolodiazepine derivative conjugate using the same, and a novel CLDN6 and/or CLDN9 antibody.Type: ApplicationFiled: April 5, 2022Publication date: March 16, 2023Applicant: DAIICHI SANKYO COMPANY, LIMITEDInventors: Narihiro TODA, Yusuke OTA, Fuminao DOI, Masaki MEGURO, Ichiro HAYAKAWA, Shinji ASHIDA, Takeshi MASUDA, Takashi NAKADA, Mitsuhiro IWAMOTO, Naoya HARADA, Tomoko TERAUCHI, Daisuke OKAJIMA, Kensuke NAKAMURA, Hiroaki UCHIDA, Hirofumi HAMADA
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Patent number: 11583590Abstract: The present invention provides a novel antibody-pyrrolodiazepine derivative and a novel antibody-pyrrolodiazepine derivative conjugate using the same, and a novel CLDN6 and/or CLDN9 antibody.Type: GrantFiled: December 6, 2021Date of Patent: February 21, 2023Assignee: DAIICHI SANKYO COMPANY, LIMITEDInventors: Narihiro Toda, Yusuke Ota, Fuminao Doi, Masaki Meguro, Ichiro Hayakawa, Shinji Ashida, Takeshi Masuda, Takashi Nakada, Mitsuhiro Iwamoto, Naoya Harada, Tomoko Terauchi, Daisuke Okajima, Kensuke Nakamura, Hiroaki Uchida, Hirofumi Hamada
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Publication number: 20220395579Abstract: The present invention provides a novel antibody-pyrrolodiazepine derivative and a novel antibody-pyrrolodiazepine derivative conjugate using the same, and a novel CLDN6 and/or CLDN9 antibody.Type: ApplicationFiled: June 26, 2022Publication date: December 15, 2022Applicant: DAIICHI SANKYO COMPANY, LIMITEDInventors: Narihiro TODA, Yusuke OTA, Fuminao DOI, Masaki MEGURO, Ichiro HAYAKAWA, Shinji ASHIDA, Takeshi MASUDA, Takashi NAKADA, Mitsuhiro IWAMOTO, Naoya HARADA, Tomoko TERAUCHI, Daisuke OKAJIMA, Kensuke NAKAMURA, Hiroaki UCHIDA, Hirofumi HAMADA
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Publication number: 20220168440Abstract: A novel antibody-pyrrolobenzodiazepine (PBD) derivative conjugate, a medicine having therapeutic effect against tumor with the antibody-drug conjugate, and a method for treating a tumor by using the antibody-drug conjugate or medicine.Type: ApplicationFiled: March 24, 2020Publication date: June 2, 2022Applicant: DAIICHI SANKYO COMPANY, LIMITEDInventors: Narihiro TODA, Yusuke OTA, Fuminao DOI, Masaki MEGURO, Ichiro HAYAKAWA, Shinji ASHIDA, Takeshi MASUDA, Takashi NAKADA
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Publication number: 20220125943Abstract: The present invention provides a novel antibody-pyrrolodiazepine derivative and a novel antibody-pyrrolodiazepine derivative conjugate using the same, and a novel CLDN6 and/or CLDN9 antibody.Type: ApplicationFiled: December 6, 2021Publication date: April 28, 2022Applicant: DAIICHI SANKYO COMPANY, LIMITEDInventors: Narihiro TODA, Yusuke OTA, Fuminao DOI, Masaki MEGURO, Ichiro HAYAKAWA, Shinji ASHIDA, Takeshi MASUDA, Takashi NAKADA, Mitsuhiro IWAMOTO, Naoya HARADA, Tomoko TERAUCHI, Daisuke OKAJIMA, Kensuke NAKAMURA, Hiroaki UCHIDA, Hirofumi HAMADA
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Publication number: 20200261594Abstract: The present invention provides a novel antibody-pyrrolodiazepine derivative and a novel antibody-pyrrolodiazepine derivative conjugate using the same, and a novel CLDN6 and/or CLDN9 antibody.Type: ApplicationFiled: September 28, 2018Publication date: August 20, 2020Applicant: DAIICHI SANKYO COMPANY, LIMITEDInventors: Narihiro TODA, Yusuke OTA, Fuminao DOI, Masaki MEGURO, Ichiro HAYAKAWA, Shinji ASHIDA, Takeshi MASUDA, Takashi NAKADA, Mitsuhiro IWAMOTO, Naoya HARADA, Tomoko TERAUCHI, Daisuke OKAJIMA, Kensuke NAKAMURA, Hiroaki UCHIDA, Hirofumi HAMADA
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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
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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
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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
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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
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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
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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
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Patent number: 8022061Abstract: Compounds having formula I: where A1, A2, L, V, W, R1, R2, R3, R4 and R5 are as described herein, compositions thereof, and their use for the treatment or prevention of type 2 diabetes and type 2 diabetes-related conditions are provided herein.Type: GrantFiled: October 9, 2007Date of Patent: September 20, 2011Assignee: Amgen Inc.Inventors: Yasuyuki Ogawa, Ryo Okuyama, Satoshi Shibuya, Narihiro Toda, Zhaodan Cao, Zice Fu, Xiaolin Hao, Yong-Jae Kim, Leping Li, Sarah E. Lively, Mike Lizarzaburu, Hui Tian, Ming Yu
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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
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Publication number: 20090149444Abstract: A compound of the formula (I): wherein R1 represents a C1-C6 alkyl, (C1-C6 alkyl)amino, di(C1-C6 alkyl)amino or a nitrogen-containing saturated heterocyclic; R2 and R3 are the same or different and represent hydrogen or a C1-C6 alkyl; Ra represents hydrogen, C1-C6 alkyl or C2-C6 alkenyl or together with R2 represents a C1-C3 alkylene; Arom represents a heteroaryl; A represents a C1-C6 alkylene; E represents a single bond, oxygen, sulphur or R4NR4—, wherein R4 is hydrogen or C1-C7 alkenoyl; X1 and X2 both represent oxygen; X2 is attached at the 3-position or the 4-position; or a pharmacologically acceptable salt or ester thereof. The compound has superior acetylcholinesterase inhibitory action and selective serotonin reuptake inhibitory action, and is useful for treating Alzheimer's disease, depression, Huntington's chorea, Pick's disease, tardive dyskinesia, compulsive disorders or panic disorders.Type: ApplicationFiled: January 29, 2009Publication date: June 11, 2009Applicant: BTG INTERNATIONAL LIMITEDInventors: Kazuo Koyama, Shinji Marumoto, Narihiro Toda, Hiroshi Kogen, Keiko Suzuki
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Patent number: 7514475Abstract: A compound of the formula (I): wherein R1 is a C1-C6 alkyl, an amino, a (C1-C6 alkyl)amino, a di(C1-C6 alkyl)amino or a nitrogen-containing saturated heterocyclic; R2 and R3 are the same or different and are a hydrogen or a C1-C6 alkyl; Arom is an unsubstituted or substituted aryl or an unsubstituted or substituted heteroaryl; wherein the substituted aryl is substituted at 1 to 5 positions and the substituted heteroaryl is substituted at 1 to 3 positions; wherein the heteroaryl is furyl, thiolyl, pyrrolyl, azepinyl, pyrazolyl, imidazolyl, oxazolyl, isoxazolyl, thiazolyl, isothiazolyl, 1,2,3 oxadiazolyl, pyranyl, pyridyl, pyridazinyl, pyrimidinyl, pyrazinyl or quinolyl; and wherein the substituents of the substituted aryl and of the substituted heteroaryl are independently halogen, C1-C6 alkyl, halogeno C1-C6 alkyl, C1-C6 alkoxy, C1-C6 alkylthio, C1-C3 alkylenedioxy, C1-C7 alkanoyl, C2-C7 alkyloxycarbonyl, amino, C1-C7 alkanoylamino, hydroxyl, mercapto, cyano, nitro or carboxyl; A is an ethylene or propyleType: GrantFiled: October 19, 2006Date of Patent: April 7, 2009Assignee: BTG International LimitedInventors: Kazuo Koyama, Shinji Marumoto, Narihiro Toda, Hiroshi Kogen, Keiko Suzuki
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Patent number: 7504393Abstract: A compound of the formula (I): wherein R1 is a C1-C6 alkyl group, an amino group, a (C1-C6 alkyl)amino group, a di(C1-C6 alkyl)amino group or a nitrogen-containing saturated heterocyclic group; R3 is a hydrogen atom or a C1-C6 alkyl group; Arom is an unsubstituted or substituted aryl group or an unsubstituted or substituted heteroaryl group; wherein the substituted aryl group is substituted at 1 to 5 positions and the substituted heteroaryl group is substituted at 1 to 3 positions; and wherein the substituents of the aryl group and of the heteroaryl group are independently selected from the group consisting of halogen atom, C1-C6 alkyl, halogeno C1-C6 alkyl, C1-C6 alkoxy, C1-C6 alkylthio, C1-C3 alkylenedioxy, C1-C7 alkanoyl, C2-C7 alkyloxycarbonyl, amino, C1-C7 alkanoylamino, hydroxyl, mercapto, cyano, nitro and carboxyl; A is a C1-C6 alkylene group; Ra together with R2 is a C2-C3 alkylene group containing a double bond; E is a single bond, an oxygen atom, a sulfur atom or a group of the formula: —NR4—, wType: GrantFiled: October 19, 2006Date of Patent: March 17, 2009Assignee: BTG International LimitedInventors: Kazuo Koyama, Shinji Marumoto, Narihiro Toda, Hiroshi Kogen, Keiko Suzuki
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Patent number: 7504437Abstract: A compound of the formula (I): wherein R1 represents C1–C6 alkyl, amino(C1–C6 alkyl)amino, di(C1–C6 alkyl)amino or a nitrogen-containing saturated heterocyclic; R2 and R3 are the same or different and represent hydrogen or C1–C6 alkyl; Ra represents C1–C6 alkyl or C2–C6 alkenyl or together with R2 represents a C1–C3 alkylene; Arom represents aryl or heteroaryl; A represents a C1–C6 alkylene; E represents a single bond, oxygen, sulfur or R4NR4—, wherein R4 is hydrogen or C1–C7 alkenoyl; X1 and X2 are the same or different and represent oxygen or sulfur; or a pharmacologically acceptable salt or ester thereof. The compound has superior acetylcholinesterase inhibitory action and selective serotonin reuptake inhibitory action, and is useful for treating or preventing Alzheimer's disease, depression, Huntington's chorea, Pick's disease, tardive dyskinesia, compulsive disorders or panic disorders.Type: GrantFiled: July 28, 2003Date of Patent: March 17, 2009Assignee: BTG International LimitedInventors: Kazuo Koyama, Shinji Marumoto, Narihiro Toda, Keiko Suzuki
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Publication number: 20080255095Abstract: A compound of the formula (I): wherein R1 is C1-C6 alkyl, amino, (C1-C6 alkyl)amino, di(C1-C6 alkyl)amino or a nitrogen-containing saturated heterocyclic; R2 and R3 are hydrogen or C1-C6 alkyl; Arom is phenyl, idenyl, napthyl, phenanthrenyl, furyl, thiolyl, pyrrolyl, azepinyl, pyrazolyl, imidazolyl, oxazolyl, isoxazolyl, thiazolyl, isothiazolyl, 1,2,3 oxadiazolyl, pyranyl, pyridyl, pyridazinyl, pyrimidinyl, pyrazinyl or quinolyl; A is C1-C6 alkylene; Ra is hydrogen, C1-C6 alkyl or C2-C6 alkenyl; E is a single bond, oxygen, sulfur or —NR4—, wherein R4 is hydrogen or C1-C7 alkanoyl; X1 and X2 are oxygen or sulfur; or a pharmacologically acceptable salt or ester thereof.Type: ApplicationFiled: June 18, 2007Publication date: October 16, 2008Applicant: BTG INTERNATIONAL LIMITEDInventors: Kazuo Koyama, Shinji Marumoto, Narihiro Toda, Hiroshi Kogen, Keiko Suzuki