Patents by Inventor Randy Ringuette

Randy Ringuette 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
    Patent number: 12129227
    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: Grant
    Filed: September 23, 2021
    Date of Patent: October 29, 2024
    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
  • 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