Patents Assigned to Zhejiang Hisum Pharmaceutical Co., Ltd.
  • Preparation of new intermediate of heparin pentasaccharide and preparation method thereof
    Patent number: 9624315
    Abstract: The present invention relates to a process of a chemically synthetic drug, and in particular, to a new intermediate of a heparin pentasaccharide and a preparation method thereof. The process has high reaction efficiency, and an easy reaction operation. The reaction intermediate is easy to be purified, and is appropriate for an industrialization production.
    Type: Grant
    Filed: April 2, 2013
    Date of Patent: April 18, 2017
    Assignee: Zhejiang Hisum Pharmaceutical Co., Ltd.
    Inventors: Yanghui Guo, Hegeng Wei, Hua Bai, Yingqiu Wu, Yue Zhang, Junhui Zhou, Yili Ding, Lingwei Bai, Shibao Yang