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. 18, 2006
Filed:
Aug. 17, 2001
Applicants:
Sushil Kumar Dubey, Madhya Pradesh, IN;
Saswata Lahiri, Madhya Pradesh, IN;
Anil Vir Singh, Madhya Pradesh, IN;
Inventors:
Sushil Kumar Dubey, Madhya Pradesh, IN;
Saswata Lahiri, Madhya Pradesh, IN;
Anil Vir Singh, Madhya Pradesh, IN;
Assignee:
Lupin Laboratories Limited, Pradesh, IN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07F 9/553 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention discloses a process for the synthesis of fosinopril as a single desired isomer of high purity in two steps comprising of (a) preparation of fosinopril as a mixture of four diastereomers and (b) separation of the desired isomer from the mixture through formation of alkali metal salts followed by crystallisation.