Patents by Inventor Souta YAMASAKI

Souta YAMASAKI 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: 11339135
    Abstract: The present invention provides an industrially advantageous method for producing a 3,5-disubstituted triazine compound that is useful as an active pharmaceutical ingredient. More specifically, the present invention provides a production method, whereby it becomes possible to efficiently produce a 3-oxo-5-substituted triazine in water without the need to isolate an intermediate that may have mutagenicity, and it also becomes possible to perform the production without the need to isolate a product in each of multiple steps. Namely, the present invention provides a method for producing a compound represented by formula I or a salt thereof, the method including a step of reacting a compound represented by the following formula IV or a salt thereof with a base in water, and optionally including a step of forming a salt thereof.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: May 24, 2022
    Assignee: MITSUBISHI TANABE PHARMA CORPORATION
    Inventors: Takafumi Yamagami, Souta Yamasaki, Tomofumi Setsuta, Ryo Sakakibara, Yosuke Matsumura
  • Publication number: 20210380541
    Abstract: The present invention provides an industrially advantageous method for producing a 3,5-disubstituted triazine compound that is useful as an active pharmaceutical ingredient. More specifically, the present invention provides a production method, whereby it becomes possible to efficiently produce a 3-oxo-5-substituted triazine in water without the need to isolate an intermediate that may have mutagenicity, and it also becomes possible to perform the production without the need to isolate a product in each of multiple steps. Namely, the present invention provides a method for producing a compound represented by formula I or a salt thereof, the method including a step of reacting a compound represented by the following formula IV or a salt thereof with a base in water, and optionally including a step of forming a salt thereof.
    Type: Application
    Filed: November 29, 2017
    Publication date: December 9, 2021
    Applicant: MITSUBISHI TANABE PHARMA CORPORATION
    Inventors: Takafumi YAMAGAMI, Souta YAMASAKI, Tomofumi SETSUTA, Ryo SAKAKIBARA, Yosuke MATSUMURA