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:
Apr. 12, 2022
Filed:
Jul. 11, 2019
Applicant:
Piramal Pharma Limited, Mumbai, IN;
Inventors:
Rajender Reddy Leleti, Gujarat, IN;
Sharadsrikar Kotturi, Gujarat, IN;
Kumara Swamy Nalivela, Gujarat, IN;
Chirag Patel, Gujarat, IN;
Poojabahen Raval, Gujarat, IN;
Vinkal Zalavadiya, Gujarat, IN;
Assignee:
PIRAMAL PHARMA LIMITED, Mumbai, IN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 303/40 (2006.01); C07D 307/52 (2006.01);
U.S. Cl.
CPC ...
C07C 303/40 (2013.01); C07D 307/52 (2013.01);
Abstract
The present invention relates to an improved process for diastereoselective synthesis of vicinal diamines (1). The process involves highly regio- and diastereoselective addition of 2-azaallyl anions (4) to N-tert-butanesulfinylimines (5) to produce vicinal diamines (1).