Patents by Inventor Chandra Kanta De

Chandra Kanta De 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 PREPARING DIMERIC PHOSPHAZENE DERIVED BRØNSTED ACIDS
    Publication number: 20230406870
    Abstract: The present invention describes a new synthesis to chiral imidodiphosphoryl compounds, their salts, metal complexes as well as derivatives thereof. Said chiral imidodiphosphoryl compounds can be used as catalysts for Brønsted acid/Brønsted base or Lewis acid/Lewis base mediated transformations.
    Type: Application
    Filed: September 28, 2021
    Publication date: December 21, 2023
    Applicant: Studiengesellschaft Kohle gGmbH
    Inventors: Benjamin LIST, Sebastian Armin SCHWENGERS, Chandra Kanta DE, Yihang LI
  • Methods for the preparation of obeticholic acid and derivatives thereof
    Patent number: 10550146
    Abstract: The present application relates to a safe method of preparing a bile acid derivative or a pharmaceutical acceptable salt, solvate, or amino acid conjugate thereof, on a large scale from 7-keto lithocholic acid (KLCA), comprising reacting Compound 2 with paraldehyde to form Compound 3 at a temperature between 10° C. and 30° C.
    Type: Grant
    Filed: April 18, 2017
    Date of Patent: February 4, 2020
    Assignee: Intercept Pharmaceuticals, Inc.
    Inventors: Benjamin List, Chandra Kanta De, Qinggang Wang