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. 20, 2012
Filed:
Aug. 31, 2009
Girish Dixit, Uttar Pradesh, IN;
Krishnadatt Sharma, Mumbai, IN;
Kundan Singh Shekhawat, Rajasthan, IN;
Nitin Sharadchandra Pradhan, Maharashtra, IN;
Girish Dixit, Uttar Pradesh, IN;
Krishnadatt Sharma, Mumbai, IN;
Kundan Singh Shekhawat, Rajasthan, IN;
Nitin Sharadchandra Pradhan, Maharashtra, IN;
Actavis Group PTC EHF, , IS;
Abstract
Provided herein is an improved, convenient, commercially viable and environmentally friendly process for the preparation of varenicline or a pharmaceutically acceptable salt thereof comprising reacting 1-(4,5-diamino-10-aza-tricyclo[6.3.1.0]dodeca-2(7),3,5-trien-10-yl)-2,2,2-trifluoro-ethanone with chloroacetaldehyde in the presence of an oxygen source. Provided further herein is an improved and industrially advantageous process for the preparation of 1-(4,5-diamino-10-aza-tricyclo[6.3.1.0]dodeca-2(7),3,5-trien-10-yl)-2,2,2-trifluoro-ethanone.