Patents by Inventor Sagar R. Shakya

Sagar R. Shakya 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).

  • 7-hexanolytaxol and methods for preparing the same
    Patent number: 6753345
    Abstract: An antitumor compound of formula (5): Also provided by the present invention is a method of preparing a compound of formula (5) whereby diesterification of the alcohol groups located at the 2′ and 7 positions of paclitaxel is followed by the hydrolysis of the 2′ hexanoate group resulting in 7-hexanoyltaxol.
    Type: Grant
    Filed: July 19, 2002
    Date of Patent: June 22, 2004
    Assignee: Hauser, Inc.
    Inventors: Christopher K. Murray, Qun Y. Zheng, Sagar R. Shakya
  • 7-hexanolytaxol and methods for preparing the same
    Publication number: 20030083367
    Abstract: An antitumor compound of formula (5): 1
    Type: Application
    Filed: July 19, 2002
    Publication date: May 1, 2003
    Applicant: Hauser, Inc.
    Inventors: Christopher K. Murray, Qun Y. Zheng, Sagar R. Shakya
  • 7-hexanoyltaxol and methods for preparing the same
    Patent number: 6469050
    Abstract: An antitumor compound of formula (5): Also provided by the present invention is a method of preparing a compound of formula (5) whereby diesterification of the alcohol groups located at the 2′and 7 positions of paclitaxel is followed by the hydrolysis of the 2′hexanoate group resulting in 7-hexanoyltaxol.
    Type: Grant
    Filed: October 16, 2000
    Date of Patent: October 22, 2002
    Inventors: Christopher K. Murray, Qun Y. Zheng, Sagar R. Shakya
  • 7-hexanoyltaxol and methods for preparing the same
    Patent number: 6136988
    Abstract: An antitumor compound of formula (5) ##STR1## and also provided by the present invention is a method of preparing a compound of formula (5) whereby diesterification of the alcohol groups located at the 2' and 7 positions of paclitaxel is followed by the hydrolysis of the 2' hexanoate group resulting in 7-hexanoyltaxol.
    Type: Grant
    Filed: April 10, 1998
    Date of Patent: October 24, 2000
    Assignee: Hauser, Inc.
    Inventors: Christopher K. Murray, Qun Y. Zheng, Sagar R. Shakya