Patents by Inventor Kau-Ming Cheng

Kau-Ming Cheng 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 the preparation of 7-alkyl-10-hydroxy-20(S)-camptothecin
    Publication number: 20040235878
    Abstract: The key intermediate in any synthesis of Irinotecan is 7-ethyl-10-hydroxy-20(S)-camptothecin. A process for the efficient synthesis of this intermediate is demonstrated proceeding through readily available 20(S)-camptothecin. Various other tecan compounds may be made by use of corresponding 7-alkyl-10-hydroxy-20(S)-camptothecin intermediates.
    Type: Application
    Filed: May 12, 2004
    Publication date: November 25, 2004
    Applicant: ScinoPharm Taiwan, Ltd.
    Inventors: Chien-Hsing Lin, Yung-Fa Cheng, Kau-Ming Cheng
  • Kinetic resolution of a intermediate useful in the production of benazepril and analogues thereof
    Publication number: 20030055245
    Abstract: The present invention provides an efficient synthetic process for making benazepril and analogues thereof by having an intermediate compound undergo epimerization and kinetic resolution.
    Type: Application
    Filed: May 21, 2002
    Publication date: March 20, 2003
    Applicant: ScinoPharm Taiwan, Ltd.
    Inventors: Wei-Hong Tseng, Kau-Ming Cheng, George Schloemer, Chien-Wen Chen, Chih-Wen Cheng