Patents by Inventor Han-Pei Hsu

Han-Pei Hsu 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).

  • Stereoselective synthesis of intermediate for preparation of heterocyclic compound
    Patent number: 11639349
    Abstract: Provided is a stereoselective synthesis of an intermediate for the preparation of the heterocyclic derivative as a Cap-dependent endonuclease inhibitor. The synthesis process has the advantages of simple operation, higher yield and relatively controllable steroselectivity, such that it is suitable for large-scale production.
    Type: Grant
    Filed: May 27, 2021
    Date of Patent: May 2, 2023
    Assignees: TaiGen Biotechnology Co., Ltd., TaiGen Biopharmaceuticals Co.(Beijing), Ltd.
    Inventors: Wen-Chang Chen, Han-Pei Hsu, Shan-Yen Chou, Shih-Chieh Chuang, Chi-Feng Yen
  • STEREOSELECTIVE SYNTHESIS OF INTERMEDIATE FOR PREPARATION OF HETEROCYCLIC COMPOUND
    Publication number: 20210371407
    Abstract: Provided is a stereoselective synthesis of an intermediate for the preparation of the heterocyclic derivative as a Cap-dependent endonuclease inhibitor. The synthesis process has the advantages of simple operation, higher yield and relatively controllable steroselectivity, such that it is suitable for large-scale production.
    Type: Application
    Filed: May 27, 2021
    Publication date: December 2, 2021
    Inventors: Wen-Chang Chen, Han-Pei Hsu, Shan-Yen Chou, Shih-Chieh Chuang, Chi-Feng Yen
  • Trans-isomeric heterocyclic compounds and preparation thereof
    Patent number: 10377714
    Abstract: A trans-isomeric compound of formula (I) below or a pharmaceutically acceptable salt thereof: in which R1 is C1-C5 alkyl or C3-C5 cycloalkyl and the trans-isomeric compound has a trans:cis ratio of at least 70:30. Further disclosed is a method for preparing the trans-isomeric compound.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: August 13, 2019
    Assignee: TaiGen Biotechnology Co., Ltd.
    Inventors: Shan-Yen Chou, Wen-Chang Chen, Chi-Feng Yen, Han-Pei Hsu, Ming-Chu Hsu, Chu-Chung Lin
  • TRANS-ISOMERIC HETEROCYCLIC COMPOUNDS AND PREPARATION THEREOF
    Publication number: 20190047956
    Abstract: A trans-isomeric compound of formula (I) below or a pharmaceutically acceptable salt thereof: in which R1 is C1-C5 alkyl or C3-C5 cycloalkyl and the trans-isomeric compound has a trans:cis ratio of at least 70:30. Further disclosed is a method for preparing the trans-isomeric compound.
    Type: Application
    Filed: August 11, 2017
    Publication date: February 14, 2019
    Inventors: Shan-Yen Chou, Wen-Chang Chen, Chi-Feng Yen, Han-Pei Hsu, Ming-Chu Hsu, Chu-Chung Lin