Patents by Inventor Subakar Paramanantham

Subakar Paramanantham 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).

  • METHODS, PROCESSES, AND COMPOSITIONS FOR IMPROVED PREPARATION OF HU308 AND HU433
    Publication number: 20230271908
    Abstract: Disclosed herein are methods, processes and compositions for preparing a compound of formula 8: (8), and formula 18: (18). The methods and processes comprise performing a first allylic oxidation, a protection reaction, a second allylic oxidation, a reduction reaction, performing an acid-catalyzed coupling reaction, a methylation reaction and a deprotection reaction. Disclosed herein are methods, processes and compositions for enantioselectively preparing compounds of formulae 8 and 18. Also disclosed herein are compositions comprising compounds of formulae 8, 18 and/or intermediates and/or starting material thereof.
    Type: Application
    Filed: September 23, 2021
    Publication date: August 31, 2023
    Applicant: Tetra Bio-Pharma Inc.
    Inventors: Harpreet Kaur, Xuejun Liu, Prabin Nepal, Subakar Paramanantham, Monika Garg, Zemin Li, Andy Tjeng, Moises Rodriguez, Laura Jong, Azam Mirzahossein, Ofer Yifrach-Stav, Erin Bassett, Randy Ringuette, Charles Campbell, Melanie Kelly
  • Synthesis of hexahydrodibenzopyranones
    Patent number: 8258322
    Abstract: An improved process is provided for the synthesis of hexahydrodibenzo[b,d]pyran-9-ones, such as nabilone.
    Type: Grant
    Filed: August 28, 2009
    Date of Patent: September 4, 2012
    Assignee: Watson Laboratories, Inc.
    Inventors: Valeriy Mikaylo, Subakar Paramanantham, Ilya Avrutov, Martyn A. Brown, Zemin Li, Natalie Lazarowych
  • Synthesis of Hexahydrodibenzopyranones
    Publication number: 20100056811
    Abstract: An improved process is provided for the synthesis of hexahydrodibenzo[b,d]pyran-9-ones, such as nabilone.
    Type: Application
    Filed: August 28, 2009
    Publication date: March 4, 2010
    Inventors: Valeriy Mikaylo, Subakar Paramanantham, Ilya Avrutov, Martyn A. Brown, Zemin Li, Natalie Lazarowych