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. 06, 2011
Filed:
Apr. 10, 2008
Venkata Naga Brahmeswara Rao Mandava, Hyderabad, IN;
Venkata Reddy Vajrala, Hyderabad, IN;
Ganesh Varanasi, Hyderabad, IN;
Vijay Kumar Adla, Warangal, IN;
Mukund Reddy Jambula, Hyderabad, IN;
Vijaypal Reddy Kanumathi Reddy, Hyderabad, IN;
Venkata Naga Brahmeswara Rao Mandava, Hyderabad, IN;
Venkata Reddy Vajrala, Hyderabad, IN;
Ganesh Varanasi, Hyderabad, IN;
Vijay Kumar Adla, Warangal, IN;
Mukund Reddy Jambula, Hyderabad, IN;
Vijaypal Reddy Kanumathi Reddy, Hyderabad, IN;
Dr. Reddy's Laboratories Limited, Hyderabad, IN;
Dr. Reddy's Laboratories, Inc., Bridgewater, NJ (US);
Abstract
There are provided processes for making rivastigmine. In one embodiment, the process includes reacting S-(−)-[1-(3-hydroxyphenyl)ethyl]dimethylamine with N-ethyl-N-methyl carbamoyl chloride in the presence of an organic base to obtain a free base of rivastigmine.