Patents by Inventor Kento SENAMI

Kento SENAMI 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).

  • Method for producing 2-alkylcarbonylnaphtho[2,3-b]furan-4,9-dione-related substance, and said related substance
    Patent number: 10919872
    Abstract: Provided is a method for producing a 2-alkylcarbonylnaphtho[2,3-b]furan-4,9-dione-related substance, which is suitable for the production on an industrial scale. The present invention provides: a method for producing an intermediate for the production of a 2-alkylcarbonyl[2,3-b]furan-4,9-dione, which comprises reacting a 1-butyne derivative in which a ketone or an alcohol is protected with a 2-hydroxy-1,4-naphthoquinone derivative having a leaving group at position-3 in a solvent in the presence of a metal or a metal compound and a base; and a substance relating to the intermediate.
    Type: Grant
    Filed: April 17, 2020
    Date of Patent: February 16, 2021
    Assignee: SUMITOMO DAINIPPON PHARMA CO., LTD.
    Inventors: Kazuhiko Takahashi, Shoji Watanabe, Katsuya Uchiyama, Kento Senami
  • Method for producing 2-alkylcarbonylnaphtho[2,3-b]furan-4,9-dione-related substance, and said related substance
    Patent number: 10738023
    Abstract: Provided is a method for producing a 2-alkylcarbonylnaphtho[2,3-b]furan-4,9-dione-related substance, which is suitable for the production on an industrial scale. The present invention provides: a method for producing an intermediate for the production of a 2-alkylcarbonyl[2,3-b]furan-4,9-dione, which comprises reacting a 1-butyne derivative in which a ketone or an alcohol is protected with a 2-hydroxy-1,4-naphthoquinone derivative having a leaving group at position-3 in a solvent in the presence of a metal or a metal compound and a base; and a substance relating to the intermediate.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: August 11, 2020
    Assignee: SUMITOMO DAINIPPON PHARMA CO., LTD.
    Inventors: Kazuhiko Takahashi, Shoji Watanabe, Katsuya Uchiyama, Kento Senami
  • METHOD FOR PRODUCING 2-ALKYLCARBONYLNAPHTHO[2,3-b]FURAN-4,9-DIONE-RELATED SUBSTANCE, AND SAID RELATED SUBSTANCE
    Publication number: 20200239424
    Abstract: Provided is a method for producing a 2-alkylcarbonylnaphtho[2,3-b]furan-4,9-dione-related substance, which is suitable for the production on an industrial scale. The present invention provides: a method for producing an intermediate for the production of a 2-alkylcarbonyl[2,3-b]furan-4,9-dione, which comprises reacting a 1-butyne derivative in which a ketone or an alcohol is protected with a 2-hydroxy-1,4-naphthoquinone derivative having a leaving group at position-3 in a solvent in the presence of a metal or a metal compound and a base; and a substance relating to the intermediate.
    Type: Application
    Filed: April 17, 2020
    Publication date: July 30, 2020
    Applicant: Sumitomo Dainippon Pharma Co., Ltd.
    Inventors: Kazuhiko TAKAHASHI, Shoji WATANABE, Katsuya UCHIYAMA, Kento SENAMI
  • METHOD FOR PRODUCING 2-ALKYLCARBONYLNAPHTHO[2,3-b]FURAN-4,9-DIONE-RELATED SUBSTANCE, AND SAID RELATED SUBSTANCE
    Publication number: 20190062294
    Abstract: Provided is a method for producing a 2-alkylcarbonylnaphtho[2,3-b]furan-4,9-dione-related substance, which is suitable for the production on an industrial scale. The present invention provides: a method for producing an intermediate for the production of a 2-alkylcarbonyl[2,3-b]furan-4,9-dione, which comprises reacting a 1-butyne derivative in which a ketone or an alcohol is protected with a 2-hydroxy-1,4-naphthoquinone derivative having a leaving group at position-3 in a solvent in the presence of a metal or a metal compound and a base; and a substance relating to the intermediate.
    Type: Application
    Filed: March 24, 2017
    Publication date: February 28, 2019
    Applicant: Sumitomo Dainippon Pharma Co., Ltd.
    Inventors: Kazuhiko TAKAHASHI, Shoji WATANABE, Katsuya UCHIYAMA, Kento SENAMI