The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 19, 2005
Filed:
Mar. 14, 2002
Applicants:
Rajest Kumar Thaper, Jammu and Kashmir, IN;
Yatendra Kumar, Haryana, IN;
Shantanu DE, Delhi, IN;
S.m. Dileep Kumar, Vizianagaram, IN;
Inventors:
Rajest Kumar Thaper, Jammu and Kashmir, IN;
Yatendra Kumar, Haryana, IN;
Shantanu De, Delhi, IN;
S.M. Dileep Kumar, Vizianagaram, IN;
Assignee:
Ranbaxy Laboratories Limited, New Delhi, IN;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D487/00 ; C07D491/00 ; C07D498/00 ; C07D513/00 ;
U.S. Cl.
CPC ...
Abstract
The present invention relates to an improved process for the preparation of trifluoromethanesulfonic ester of ethyl (R)-2-hydroxy-4-phenylbutyrate, referred to here as triflate in structural Formula I, and to the use of this compound as intermediate for the preparation of ACE (Angiotensin Converting Enzyme) inhibitor, benazepril.