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:
Nov. 13, 2012
Filed:
Dec. 18, 2008
Pratap Reddy Padi, Hyderabad, IN;
Babu Ireni, Nizamabad, IN;
Srinivas Polavarapu, Hyderabad, IN;
Shailaja Padamata, Hyderabad, IN;
Kavitha Nerella, Krishna District, IN;
Vijaya Anand Ramasamy, Virudhunagar, IN;
Ranga Reddy Vangala, Hyderabad, IN;
Pratap Reddy Padi, Hyderabad, IN;
Babu Ireni, Nizamabad, IN;
Srinivas Polavarapu, Hyderabad, IN;
Shailaja Padamata, Hyderabad, IN;
Kavitha Nerella, Krishna District, IN;
Vijaya Anand Ramasamy, Virudhunagar, IN;
Ranga Reddy Vangala, Hyderabad, IN;
Dr. Reddy's Laboratories Limited, Hyderabad, Andhra Pradesh, IN;
Dr. Reddy's Laboratories, Incorporated, Bridgewater, NJ (US);
Abstract
There is provided an improved process for the preparation of Sitagliptin of Formula II by reduction of compound of Formula VIII to Formula IX followed by deprotection of Formula IX to afford Sitagliptin of Formula II.