Patents by Inventor Bijan Panda

Bijan Panda 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).

  • Publication number: 20220235014
    Abstract: The present invention provides to an improved process for the preparation of highly pure Erlotinib hydrochloride of formula (I) The substantially pure Erlotinib hydrochloride (I) obtained by improved process of the present invention is having purity of greater than 99.8% (% w/w by HPLC). Erlotinib hydrochloride is useful in the treatment of cancer more particularly in the treatment of lung cancer and pancreatic cancer.
    Type: Application
    Filed: January 23, 2021
    Publication date: July 28, 2022
    Applicant: SHIVALIK RASAYAN LIMITED
    Inventors: AKSHAY KANT CHATURVEDI, SATYENDRA SINGH, BIJAN PANDA
  • 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
  • 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