Patents by Inventor Golak Maikap

Golak Maikap 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).

  • INTERMEDIATE AND PROCESS FOR PREPARING OF BETA- ANOMER ENRICHED 21-DEOXY,21,21-DIFLUORO-D-RIBOFURANOSYL NUCLEOSIDES
    Publication number: 20070208170
    Abstract: The present invention provides a highly stereoselective, simple and economical glycosylation process for preparation of ?-anomer enriched 21-deoxy-21,21-D-ribofuranosyl difluoronucleosides of formula (II), and physiologically acceptable slats thereof, in particular, the ?-enriched anomer of gemcitabine hydrochloride of formula (IIb) in purity of >99% is provided through utilization of a novel trichloroacetimidate of formula (I).
    Type: Application
    Filed: February 26, 2007
    Publication date: September 6, 2007
    Inventors: Golak Maikap, Deependra Bhatt, Bijan Panda
  • Intermediate and process for preparing of beta- anomer enriched 21-deoxy,21,21-difluoro-D-ribofuranosyl nucleosides
    Publication number: 20060217547
    Abstract: The present invention provides a highly stereoselective, simple and economical glycosylation process for preparation of ?-anomer enriched 21-deoxy-21,21-D-ribofuranosyl difluoronucleosides of formula (II), and physiologically acceptable slats thereof, in particular, the ?-enriched anomer of gemcitabine hydrochloride of formula (IIb) in purity of >99% is provided through utilization of a novel trichloroacetimidate of formula (I).
    Type: Application
    Filed: January 13, 2006
    Publication date: September 28, 2006
    Inventors: Golak Maikap, Deependra Bhatt, Bijan Panda