Patents by Inventor Mingchao BI

Mingchao BI 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).

  • Processes for preparing dihydropyrimidine derivatives and intermediates thereof
    Patent number: 9573941
    Abstract: The present invention relates to processes for preparing a dihydropyrimidine derivative having Formula (I) or a tautomer thereof having Formula (Ia), as well as a intermediate thereof. The processes of the invention have simple operation, high optical purity of product, high yield and convenient work-up, which is suitable for industrial production.
    Type: Grant
    Filed: November 27, 2014
    Date of Patent: February 21, 2017
    Assignee: SUNSHINE LAKE PHARMA CO., LTD.
    Inventors: Qingyun Ren, Xinchang Liu, Zhifu Zou, Guanghua Yan, Mingchao Bi, Siegfried Goldmann, Yingjun Zhang
  • PROCESSES FOR PREPARING DIHYDROPYRIMIDINE DERIVATIVES AND INTERMEDIATES THEREOF
    Publication number: 20160244438
    Abstract: The present invention relates to processes for preparing a dihydropyrimidine derivative having Formula (I) or a tautomer thereof having Formula (Ia), as well as a intermediate thereof. The processes of the invention have simple operation, high optical purity of product, high yield and convenient work-up, which is suitable for industrial production.
    Type: Application
    Filed: November 27, 2014
    Publication date: August 25, 2016
    Applicant: SUNSHINE LAKE PHARMA CO., LTD.
    Inventors: Qingyun REN, Xinchang LIU, Zhifu ZOU, Guanghua YAN, Mingchao BI, Siegfried GOLDMANN, Yingjun ZHANG