Patents by Inventor Hiroaki Sawamoto

Hiroaki Sawamoto 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).

  • Publication number: 20230227824
    Abstract: A modified oligonucleotide having an activity of inhibiting Ataxin 3 expression and having any one of the following nucleobase sequences or a nucleobase sequence of 17 contiguous bases contained in the nucleobase sequences: (SEQ?ID?NO:?239) (1) TCGGGTAAGTAGATTTTC, (SEQ?ID?NO:?240) (2) GAAGTATCTGTAGGCCTA, (SEQ?ID?NO:?241) (3) GGACTGTATAGGAGATTA, (SEQ?ID?NO:?242) (4) GGTTATAGGATGCAGGTA, (SEQ?ID?NO:?243) (5) AGGTTATAGGATGCAGGT, (SEQ?ID?NO:?244) (6) GAAGCTAAGTAGGTGACT, (SEQ?ID?NO:?245) (7) TGAAGCTAAGTAGGTGAC, (SEQ?ID?NO:?246) (8) CCTAGTCACTTTGATAGA, (SEQ?ID?NO:?247) (9) GGAACATCTTGAGTAGGT, (SEQ?ID?NO:?248) (10) GGTGTTCAGGGTAGATGT, (SEQ?ID?NO:?249) (11) GGATACTCTGCCCTGTTC, (SEQ?ID?NO:?250) (12) GGTGTCAAACGTGTGGTT, (SEQ?ID?
    Type: Application
    Filed: May 12, 2021
    Publication date: July 20, 2023
    Applicant: MITSUBISHI TANABE PHARMA CORPORATION
    Inventors: Hiroaki SAWAMOTO, Takuya HIGO, Shumpei MURATA, Tomo ARAKI
  • Publication number: 20220002336
    Abstract: The present invention provides a novel bridged artificial nucleic acid and an oligomer containing the same as a monomer. The present invention provides specifically a compound represented by general formula (I) (wherein each symbol is the same as defined in the specification) or salts thereof; as well as an oligonucleotide compound represented by general formula (I?) (wherein each symbol is the same as defined in the specification) or salts thereof.
    Type: Application
    Filed: November 11, 2019
    Publication date: January 6, 2022
    Applicants: MITSUBISHI TANABE PHARMA CORPORATION, OSAKA UNIVERSITY
    Inventors: Hiroaki SAWAMOTO, Shinji KUMAGAI, Hiroyuki FURUKAWA, Tomo ARAKI, Masayuki UTSUGI, Satoshi OBIKA
  • Patent number: 10961269
    Abstract: A method for preparing a compound represented by general formula I: or a salt thereof includes a step of reacting a compound represented by formula II: with a reducing agent to cleave an oxazolidine ring fused to a cycle A?. The reducing agent includes at least one of phosphines, metal hydrides, or transition metal catalysts in the presence of hydrogen gas.
    Type: Grant
    Filed: September 20, 2016
    Date of Patent: March 30, 2021
    Assignees: MITSUBISHI TANABE PHARMA CORPORATION, OSAKA UNIVERSITY
    Inventors: Satoshi Obika, Eiji Kawanishi, Hiroaki Sawamoto, Shuhei Yamakoshi, Yuuki Aral, Shinji Kumagai
  • Patent number: 10308636
    Abstract: The compound represented by the general formula: wherein ring A is benzene which may be substituted and the like; ring B is benzene which may be substituted and the like; X is a single bond and the like; Y is alkyl which may be substituted and the like; Z is CR1 or nitrogen atom; R1 is hydrogen and the like; R2 is alkyl which may be substituted and the like or a pharmaceutically acceptable salt thereof is useful as a prevention/treatment agent of obesity, diabetes, and the like.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: June 4, 2019
    Assignee: MITSUBISHI TANABE PHARMA CORPORATION
    Inventors: Kunio Saruta, Norimitsu Hayashi, Osamu Sakurai, Hiroaki Sawamoto, Eri Ooboki
  • Publication number: 20180251488
    Abstract: The present invention provides a method for producing guanidine crosslinked artificial nucleic acid (abbreviated hereinafter as GuNA), and an intermediate compound for the production thereof. Specifically, the present invention provides a method for producing a compound represented by general formula I: (in the formula, R1, R2, R3, R4, R5, R6, m and ring A are as defined in the specification) or a salt thereof wherein a reducing agent is reacted with a compound represented by general formula II: (in the formula, R1, R2, R3, R4, R5, R6, m, and ring A? are as defined in the specification).
    Type: Application
    Filed: September 20, 2016
    Publication date: September 6, 2018
    Applicants: MITSUBISHI TANABE PHARMA CORPORATION, OSAKA UNIVERSITY
    Inventors: Satoshi OBIKA, Eiji KAWANISHI, Hiroaki SAWAMOTO, Shuhei YAMAKOSHI, Yuuki ARAI, Shinji KUMAGAI
  • Patent number: 9975871
    Abstract: This is to provide a continuous arycyclic compound having a DGAT1 inhibitory activity, and useful for prophylaxis and/or treatment of obesity or hyperlipidemia caused by obesity, hypertriglyceridemia, lipid metabolism disorder, fatty liver, hypertension, arteriosclerosis, diabetes, etc., as well as to provide a DGAT1 inhibitor comprising the continuous arycyclic compound or a pharmaceutically acceptable salt thereof as an effective ingredient. Disclosed is the continuous arycyclic compound is represented by the formula: wherein the substituents in the formula are the same as defined in the specification, or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: May 22, 2018
    Assignee: MITSUBISHI TANABE PHARMA CORPORATION
    Inventors: Osamu Sakurai, Kunio Saruta, Norimitsu Hayashi, Takashi Goi, Kenji Morokuma, Hidekazu Tsujishima, Hiroaki Sawamoto, Hiroaki Shitama, Ritsuo Imashiro
  • Publication number: 20170050950
    Abstract: The compound represented by the general formula: wherein ring A is benzene which may be substituted and the like; ring B is benzene which may be substituted and the like; X is a single bond and the like; Y is alkyl which may be substituted and the like; Z is CR1 or nitrogen atom; R1 is hydrogen and the like; R2 is alkyl which may be substituted and the like or a pharmaceutically acceptable salt thereof is useful as a prevention/treatment agent of obesity, diabetes, and the like.
    Type: Application
    Filed: August 29, 2016
    Publication date: February 23, 2017
    Applicant: MITSUBISHI TANABE PHARMA CORPORATION
    Inventors: Kunio SARUTA, Norimitsu HAYASHI, Osamu SAKURAI, Hiroaki SAWAMOTO, Eri OOBOKI
  • Patent number: 9546155
    Abstract: The compound represented by the general formula: wherein ring A is benzene which may be substituted and the like; ring B is benzene which may be substituted and the like; X is a single bond and the like; Y is alkyl which may be substituted and the like; Z is CR1 or nitrogen atom; R1 is hydrogen and the like; R2 is alkyl which may be substituted and the like or a pharmaceutically acceptable salt thereof is useful as a prevention/treatment agent of obesity, diabetes, and the like.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: January 17, 2017
    Assignee: MITSUBISHI TANABE PHARMA CORPORATION
    Inventors: Kunio Saruta, Norimitsu Hayashi, Osamu Sakurai, Hiroaki Sawamoto, Eri Ooboki
  • Publication number: 20160272614
    Abstract: This is to provide a continuous arycyclic compound having a DGAT1 inhibitory activity, and useful for prophylaxis and/or treatment of obesity or hyperlipidemia caused by obesity, hypertriglyceridemia, lipid metabolism disorder, fatty liver, hypertension, arteriosclerosis, diabetes, etc., as well as to provide a DGAT1 inhibitor comprising the continuous arycyclic compound or a pharmaceutically acceptable salt thereof as an effective ingredient. Disclosed is the continuous arycyclic compound is represented by the formula: wherein the substituents in the formula are the same as defined in the specification, or a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: February 22, 2016
    Publication date: September 22, 2016
    Applicant: MITSUBISHI TANABE PHARMA CORPORATION
    Inventors: Osamu SAKURAI, Kunio SARUTA, Norimitsu HAYASHI, Takashi GOI, Kenji MOROKUMA, Hidekazu TSUJISHIMA, Hiroaki SAWAMOTO, Hiroaki SHITAMA, Ritsuo IMASHIRO
  • Patent number: 9302996
    Abstract: This is to provide a continuous arycyclic compound having a DGAT1 inhibitory activity, and useful for prophylaxis and/or treatment of obesity or hyperlipidemia caused by obesity, hypertriglyceridemia, lipid metabolism disorder, fatty liver, hypertension, arteriosclerosis, diabetes, etc., as well as to provide a DGAT1 inhibitor comprising the continuous arycyclic compound or a pharmaceutically acceptable salt thereof as an effective ingredient. Disclosed is the continuous arycyclic compound is represented by the formula: wherein the substituents in the formula are the same as defined in the specification, or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: April 5, 2016
    Assignee: MITSUBISHI TANABE PHARMA CORPORATION
    Inventors: Osamu Sakurai, Kunio Saruta, Norimitsu Hayashi, Takashi Goi, Kenji Morokuma, Hidekazu Tsujishima, Hiroaki Sawamoto, Hiroaki Shitama, Ritsuo Imashiro
  • Publication number: 20150158844
    Abstract: The compound represented by the general formula: wherein ring A is benzene which may be substituted and the like; ring B is benzene which may be substituted and the like; X is a single bond and the like; Y is alkyl which may be substituted and the like; Z is CR1 or nitrogen atom; R1 is hydrogen and the like; R2 is alkyl which may be substituted and the like or a pharmaceutically acceptable salt thereof is useful as a prevention/treatment agent of obesity, diabetes, and the like.
    Type: Application
    Filed: June 14, 2013
    Publication date: June 11, 2015
    Applicant: MITSUBISHI TANABE PHARMA CORPORATION
    Inventors: Kunio Saruta, Norimitsu Hayashi, Osamu Sakurai, Hiroaki Sawamoto, Eri Ooboki
  • Publication number: 20130261128
    Abstract: This is to provide a continuous arycyclic compound having a DGAT1 inhibitory activity, and useful for prophylaxis and/or treatment of obesity or hyperlipidemia caused by obesity, hypertriglyceridemia, lipid metabolism disorder, fatty liver, hypertension, arteriosclerosis, diabetes, etc., as well as to provide a DGAT1 inhibitor comprising the continuous arycyclic compound or a pharmaceutically acceptable salt thereof as an effective ingredient. Disclosed is the continuous arycyclic compound is represented by the formula: wherein the substituents in the formula are the same as defined in the specification, or a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: December 16, 2011
    Publication date: October 3, 2013
    Applicant: MITSUBISHI TANABE PHARMA CORPORATION
    Inventors: Osamu Sakurai, Kunio Saruta, Norimitsu Hayashi, Takashi Goi, Kenji Morokuma, Hidekazu Tsujishima, Hiroaki Sawamoto, Hiroaki Shitama, Ritsuo Imashiro