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:
Sep. 30, 2014
Filed:
May. 10, 2010
Applicants:
Vinayak Govind Gore, Maharashtra, IN;
Maheshkumar Gadakar, Maharashtra, IN;
Priyanka Bhosle, Maharashtra, IN;
Suresh Shinde, Maharashtra, IN;
Inventors:
Vinayak Govind Gore, Maharashtra, IN;
Maheshkumar Gadakar, Maharashtra, IN;
Priyanka Bhosle, Maharashtra, IN;
Suresh Shinde, Maharashtra, IN;
Assignee:
Generics [UK] Limited, Hertfordshire, GB;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D 471/04 (2006.01); C07C 229/34 (2006.01); C07D 487/04 (2006.01);
U.S. Cl.
CPC ...
C07D 487/04 (2013.01); C07B 2200/07 (2013.01); C07C 229/34 (2013.01);
Abstract
The present invention relates to novel processes for the preparation of enantiomerically enriched β-amino acid derivatives such as β-amino esters useful for the synthesis of enantiomerically enriched biologically active molecules such as sitagliptin. The key step involves the resolution of the racemate with mandelic acid.