Patents by Inventor Veena Upadhyay

Veena Upadhyay 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 fluoroleucine alkyl esters
    Patent number: 7429674
    Abstract: This invention relates to a stereoselective preparation of fluoroleucine alkyl esters.
    Type: Grant
    Filed: April 14, 2005
    Date of Patent: September 30, 2008
    Assignee: Merck & Co. Inc..
    Inventors: Paul Devine, John Limanto, Ali Shafiee, Veena Upadhyay
  • Process for preparing fluoroleucine alkyl esters
    Publication number: 20050234128
    Abstract: This invention relates to a stereoselective preparation of fluoroleucine alkyl esters.
    Type: Application
    Filed: April 14, 2005
    Publication date: October 20, 2005
    Inventors: Paul Devine, John Limanto, Ali Shafiee, Veena Upadhyay
  • Process for making intermediate aldehydes
    Patent number: 6201158
    Abstract: The present invention relates to a process for making propargylic alcohols by zinc-mediated catalytic, asymmetric addition of acetylenes to aldehydes.
    Type: Grant
    Filed: May 27, 1999
    Date of Patent: March 13, 2001
    Assignee: Merck & Co., Inc.
    Inventors: Zhen Li, Ann Decamp, Veena Upadhyay
  • Process for making an epoxide
    Patent number: 5728840
    Abstract: A process for synthesizing the epoxide of the formula ##STR1## consists of, at a minimum, formation of a halohydrin from the allyl acetonide reactat, followed by base-induced cyclization, the epoxide product I being useful as an intermediate for the synthesis of inhibitors of renin or HIV protease or other proteases.
    Type: Grant
    Filed: August 8, 1995
    Date of Patent: March 17, 1998
    Assignee: Merck & Co., Inc.
    Inventors: David Askin, Kan K. Eng, Peter E. Maligres, Paul J. Reider, Kai Rossen, Ralph P. Volante, Veena Upadhyay, Steven A. Weissman