Patents by Inventor T. K. Thiruvengadam

T. K. Thiruvengadam 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).

  • Enantioselective synthesis of azetidinone intermediate compounds
    Publication number: 20030204096
    Abstract: The application relates to a process for preparing a compound of Formula I 1
    Type: Application
    Filed: May 20, 2003
    Publication date: October 30, 2003
    Applicant: Schering Corporation
    Inventors: Xiaoyong Fu, Timothy L. Mc Allister, T.K. Thiruvengadam, Chou-Hong Tann
  • Enantioselective synthesis of azetidinone intermediate compounds
    Patent number: 6627757
    Abstract: The application relates to a process for preparing a compound of Formula I This compound is an intermediate used to produce compounds that are useful as hypocholesterolemic agents in the treatment and prevention of atheroschlerosis.
    Type: Grant
    Filed: March 25, 2002
    Date of Patent: September 30, 2003
    Assignee: Schering Corporation
    Inventors: Xiaoyong Fu, Timothy L. McAllister, T. K. Thiruvengadam, Chou-Hong Tann
  • Enantioselective synthesis of azetidinone intermediate compounds
    Publication number: 20020193607
    Abstract: The application relates to a process for preparing a compound of Formula I 1
    Type: Application
    Filed: March 25, 2002
    Publication date: December 19, 2002
    Applicant: Schering Corporation
    Inventors: Xiaoyong Fu, Timothy L. McAllister, T.K. Thiruvengadam, Chou-Hong Tann
  • Process for preparing thrombin receptor antagonist building blocks
    Publication number: 20020049350
    Abstract: A single batch process for preparing (R)-benzyl-4-hydroxy-2-pentynoate by reacting (R)-3-butyn-2-ol with 1,1,1,3,3,3-hexamethyldisilazane to silylate the starting alcohol, followed by deprotonation with an alkyl lithium compound, then a reaction with a haloformate compound, and finally a hydrolysis reaction to arrive at the product ester.
    Type: Application
    Filed: June 26, 2001
    Publication date: April 25, 2002
    Inventors: Xiaoyong Fu, Chou-Hong Tann, T.K. Thiruvengadam, Jianguo Yin, Timothy L. McAllister, Cesar Colon
  • Process for preparing albuterol, acetal, hemi-acetal, and hydrates of arylglyoxal intermediates thereof
    Patent number: 5283359
    Abstract: The preparation of arylethanolamines, and in particular albuterol (salbutamol), together with their novel boron, acetal and hemi-acetal intermediates is described.
    Type: Grant
    Filed: March 1, 1993
    Date of Patent: February 1, 1994
    Assignee: Schering Corp.
    Inventors: Chou-Hong Tann, T. K. Thiruvengadam, John Chiu, Michael Green, Timothy L. McAllister, Cesar Colon, Junning Lee