Patents by Inventor Deli Zeng

Deli Zeng 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).

  • Method for preparing nilotinib intermediate
    Patent number: 10392351
    Abstract: Disclosed in the present invention is a method for preparing nilotinib intermediate 3-(4-methyl-1H-imidazol-1-yl)-5trifluoromethyl phenylamine (I). The method comprises the following steps: taking trifluorotoluene as an initial material, and preparing the nilotinib intermediate (I) by nitration, bromization, condensation and reduction successively Compared with the prior art, the preparation method has the following advantages: a relatively high yield, the raw materials are easily obtained, a concise process and few side reactions, and is adapted to industrial production, so the development of an economic technology of the bulk drug is promoted.
    Type: Grant
    Filed: July 7, 2016
    Date of Patent: August 27, 2019
    Assignees: SUZHOU LIXIN PHARMACEUTICAL CO., LTD.
    Inventors: Xuenong Xu, Deli Zeng, Liang Shu, Qing Zhang, Zhijian Bao, Jia Xue, Jian Su, Zhe Wang, Wenjie Zhou, Lingling Xie
  • Method for preparing nilotinib intermediate
    Publication number: 20160311777
    Abstract: Disclosed in the present invention is a method for preparing nilotinib intermediate 3-(4-methyl-1H-imidazol-1-yl)-5trifluoromethyl phenylamine (I). The method comprises the following steps: taking trifluorotoluene as an initial material, and preparing the nilotinib intermediate (I) by nitration, bromization, condensation and reduction successively Compared with the prior art, the preparation method has the following advantages: a relatively high yield, the raw materials are easily obtained, a concise process and few side reactions, and is adapted to industrial production, so the development of an economic technology of the bulk drug is pro moted.
    Type: Application
    Filed: July 7, 2016
    Publication date: October 27, 2016
    Applicants: SUZHOU LIXIN PHARMACEUTICAL CO.,LTD
    Inventors: Xuenong Xu, Deli Zeng, Liang Shu, Qing Zhang, Zhijian Bao, Jia Xue, Jian Su, Zhe Wang, Wenjie Zhou, Lingling Xie