Patents by Inventor Murong Peng

Murong Peng 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 pimavanserin and tartrate thereof by using triphosgene
    Patent number: 10934257
    Abstract: The present disclosure discloses a method for safely preparing pimavanserin and tartrate thereof by using triphosgene. The synthesis route includes: Raw materials used in the method of the present disclosure are safe and inexpensive, thereby effectively reducing the production costs. The method of the present disclosure has mild reaction conditions, and avoids using phosgene, which is highly toxic and difficult to handle is avoided. Thus, the method is readily implemented industrially.
    Type: Grant
    Filed: July 19, 2019
    Date of Patent: March 2, 2021
    Assignee: Livzon New North River Pharmaceutical Co., Ltd.
    Inventors: Biao Wang, Qiao Jiang, Bingbing Li, Murong Peng, Weijian Xie
  • Method for Safely Preparing Pimavanserin and Tartrate Thereof by Using Triphosgene
    Publication number: 20200369612
    Abstract: The present disclosure discloses a method for safely preparing pimavanserin and tartrate thereof by using triphosgene. The synthesis route includes: Raw materials used in the method of the present disclosure are safe and inexpensive, thereby effectively reducing the production costs. The method of the present disclosure has mild reaction conditions, and avoids using phosgene, which is highly toxic and difficult to handle is avoided. Thus, the method is readily implemented industrially.
    Type: Application
    Filed: July 19, 2019
    Publication date: November 26, 2020
    Applicant: Livzon New North River Pharmaceutical Co., Ltd.
    Inventors: Biao Wang, Qiao Jiang, Bingbing Li, Murong Peng, Weijian Xie