Patents by Inventor Nageshwar Dussa

Nageshwar Dussa 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 Dolutegravir
    Patent number: 9573965
    Abstract: The present invention provides (R)-3-Amino-1-butanol (D)-tartarate (IIb); process for its preparation and its conversion to Dolutegravir. The present invention also provides an improved process for the preparation of Dolutegravir (I) or pharmaceutically acceptable salts wherein compound (XVI) is reacted with an optically active acid addition salt of (R)-3-amino-1-butanol (IIa).
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: February 21, 2017
    Assignee: Aurobindo Pharma Ltd
    Inventors: Shankar Reddy Budidet, Nageshwar Dussa, Gowrisankar Rao Kaki, Srinivasa Rao Yatcherla, Jagan Mohan Reddy Sanapureddy, Subba Reddy Danda, Srinivasachary Katuroju, Sivakumaran Meenakshisunderam
  • An improved process for the preparation of Dolutegravir
    Publication number: 20160108058
    Abstract: The present invention provides (R)-3-Amino-1-butanol (D)-tartarate (IIb); process for its preparation and its conversion to Dolutegravir. The present invention also provides an improved process for the preparation of Dolutegravir (I) or pharmaceutically acceptable salts wherein compound (XVI) is reacted with an optically active acid addition salt of (R)-3-amino-1-butanol (IIa).
    Type: Application
    Filed: February 7, 2014
    Publication date: April 21, 2016
    Applicant: Aurobindo Pharma Ltd.
    Inventors: Shankar Reddy Budidet, Nageshwar Dussa, Gowrisankar Rao Kaki, Srinivasa Rao Yatcherla, Jagan Mohan Reddy Sanapureddy, Subba Reddy Danda, Srinivasachary Katuroju, Sivakumaran Meenakshisunderam