Patents by Inventor Xinhua Qian

Xinhua Qian 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 chiral diol sulfones and dihydroxy acid HMG CoA reductase inhibitors
    Patent number: 6875867
    Abstract: A process is provided for preparing chiral diol sulfones of the structure where R3 is preferably where R4a is preferably aryl such as phenyl, and R1a is preferably alkyl such as t-butyl, which are intermediates used in preparing HMG CoA reductase inhibitors.
    Type: Grant
    Filed: May 30, 2002
    Date of Patent: April 5, 2005
    Assignee: Bristol-Myers Squibb Company
    Inventors: Paul R. Brodfuehrer, Thomas R. Sattelberg, Joydeep Kant, Xinhua Qian
  • Process for preparing chiral diol sulfones and dihydroxy acid HMG CoA reductase inhibitors
    Publication number: 20030018199
    Abstract: A process is provided for preparing chiral diol sulfones of the structure 1
    Type: Application
    Filed: May 30, 2002
    Publication date: January 23, 2003
    Inventors: Paul R. Brodfuehrer, Thomas R. Sattelberg, Joydeep Kant, Xinhua Qian