Patents by Inventor Guanneng Yu

Guanneng Yu 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: 11697644
    Abstract: A method for synthesis of Eliglustat and intermediate compounds thereof. Specifically, a method for synthesis of Eliglustat and pharmaceutically acceptable salts thereof, and further to intermediate compounds used in the method and a preparation method for the intermediate compounds. Compared with an existing synthesis method, the method for synthesis of Eliglustat of the present invention uses novel synthetic intermediates and synthesis steps, features ease of operation, high yield, good purity of intermediates and target products, etc., and facilitates industrial production.
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: July 11, 2023
    Assignee: ZHEJIANG AUSUN PHARMACEUTICAL CO., LTD.
    Inventors: Yu Liu, Guanneng Yu, Zhiguo Zheng
  • Publication number: 20200031808
    Abstract: The present invention relates to a process for synthesis of Eliglustat and intermediate compounds thereof. In particular, the present invention belongs to the field of synthesis of organic compounds, relates to a process for synthesis of Eliglustat and pharmaceutically acceptable salts thereof, and relates to the intermediate compounds used in the process and a process for preparation of the intermediate compounds. Compared with the existing synthetic processes, the process for preparing Eliglustat according to the present invention utilizes novel intermediates and steps for synthesis, has advantages of convenient operations, high yield, good purity of intermediates and desired product, and it is easy to apply the process in the industrial production.
    Type: Application
    Filed: October 16, 2017
    Publication date: January 30, 2020
    Applicant: ZHEJIANG AUSUN PHARMACEUTICAL CO., LTD.
    Inventors: Yu LIU, Guanneng YU, Zhiguo ZHENG
  • Patent number: 9988364
    Abstract: The present invention relates to a process for synthesis of Eliglustat and intermediate compounds thereof. In particular, the present invention relates to a process for synthesis of Eliglustat and pharmaceutically acceptable salts thereof, and relates to the intermediate compounds in the process and a process for preparation of the intermediate compounds.
    Type: Grant
    Filed: August 21, 2017
    Date of Patent: June 5, 2018
    Assignee: ZHEJIANG AUSUN PHARMACEUTICAL CO., LTD.
    Inventors: Yu Liu, Guanneng Yu, Zhiguo Zheng