Patents by Inventor Jiunn-Cheh Guo

Jiunn-Cheh Guo 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).

  • PROCESS FOR PREPARING APALUTAMIDE
    Publication number: 20180201601
    Abstract: The present invention provides efficient, economical, and environmentally friendly processes for synthesizing apalutamide and intermediates thereof. Also provided herein are novel compounds and intermediates thereof.
    Type: Application
    Filed: January 17, 2018
    Publication date: July 19, 2018
    Inventors: Shang-Hong Chen, Jiunn-Cheh Guo, Wen-Li Shih
  • PROCESSES FOR PREPARING BREXPIPRAZOLE
    Publication number: 20170145001
    Abstract: The present disclosure provides processes for preparing brexpiprazole. The present disclosure also provides processes for the purification of brexpiprazole. The processes for preparing and purifying brexpiprazole of the present invention provide substantial improvements over currently known methods. In certain embodiments, the conversion of Formula XI and XII to form XIII provides increased selectivity over previously reported methods. This offers increased yield and purity. The improved process for purifying brexpiprazole disclosed herein provides brexpiprazole with superior purity and is also more suitable for industrial production.
    Type: Application
    Filed: November 1, 2016
    Publication date: May 25, 2017
    Inventors: Chia-Ying LEE, Shu Ting HUANG, Hsin-Chi WANG, Yuan-Xiu LIAO, Jiunn-Cheh GUO, Lung-Huang KUO
  • Process for preparing enzalutamide
    Patent number: 9643931
    Abstract: The present invention provides a process for the efficient preparation of enzalutamide.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: May 9, 2017
    Assignee: SCINOPHARM TAIWAN, LTD.
    Inventors: Yuan-Xiu Liao, Jiunn-Cheh Guo, Wen-Li Shih, Shang-Hong Chen
  • NOVEL PROCESS FOR PREPARING ENZALUTAMIDE
    Publication number: 20160362381
    Abstract: The present invention provides a process for the efficient preparation of enzalutamide.
    Type: Application
    Filed: June 8, 2016
    Publication date: December 15, 2016
    Inventors: Yuan-Xiu Liao, Jiunn-Cheh Guo, Wen-Li Shih, Shang-Hong Chen