Patents by Inventor Linjin TU

Linjin TU 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: 9643962
    Abstract: The present invention refers to processes for preparing a dihydropyrimidine compound having Formula (I), or a tautomer thereof having Formula (Ia), as well as a intermediate thereof. The process of the invention has 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: May 9, 2017
    Assignee: SUNSHINE LAKE PHARMA CO., LTD.
    Inventors: Qingyun Ren, Xinchang Liu, Zhifu Zou, Linjin Tu, Yuefeng Shan, Douxing Lei, Siegfried Goldmann, Yingjun Zhang
  • Processes for preparing dihydropyrimidine derivatives and intermediates thereof
    Patent number: 9617252
    Abstract: The present invention refers to processes for preparing a dihydropyrimidine compound having Formula (I), or a tautomer thereof having Formula (1a), as well as a intermediate thereof. The process of the invention has 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: April 11, 2017
    Assignee: SUNSHINE LAKE PHARMA CO., LTD.
    Inventors: Xinchang Liu, Qingyun Ren, Zhifu Zou, Jinsheng Liang, Linjin Tu, Siegfried Goldmann, Yingjun Zhang
  • PROCESSES FOR PREPARING DIHYDROPYRIMIDINE DERIVATIVES AND INTERMEDIATES THEREOF
    Publication number: 20160264563
    Abstract: The present invention refers to processes for preparing a dihydropyrimidine compound having Formula (I), or a tautomer thereof having Formula (Ia), as well as a intermediate thereof. The process of the invention has 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: September 15, 2016
    Applicant: SUNSHINE LAKE PHARMA CO., LTD.
    Inventors: Qingyun REN, Xinchang LIU, Zhifu ZOU, Linjin TU, Yuefeng SHAN, Douxing LEI, Slegfried GOLDMANN, Yingjun ZHANG
  • PROCESSES FOR PREPARING DIHYDROPYRIMIDINE DERIVATIVES AND INTERMEDIATES THEREOF
    Publication number: 20160264562
    Abstract: The present invention refers to processes for preparing a dihydropyrimidine compound having Formula (I), or a tautomer thereof having Formula (la), as well as a intermediate thereof. The process of the invention has 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: September 15, 2016
    Applicant: SUNSHINE LAKE PHARMA CO., LTD.
    Inventors: Xinchang LIU, Qingyun REN, Zhifu ZOU, Jinsheng LIANG, Linjin TU, Siegfried GOLDMANN, Yingjun ZHANG