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. 19, 2019
Filed:
Apr. 12, 2017
Applicant:
Lupin Limited, Mumbai, IN;
Inventors:
Tushar Nandkumar Despande, Pune, IN;
Dnyaneshwar Tukaram Singare, Pune, IN;
Yogesh Dadaji Pawar, Pune, IN;
Yuvraj Atmaram Chavan, Pune, IN;
Purna Chandra Ray, Pune, IN;
Girij Pal Singh, Pune, IN;
Assignee:
Lupin Limited, Maharashtra, IN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 455/06 (2006.01);
U.S. Cl.
CPC ...
C07D 455/06 (2013.01); C07B 2200/05 (2013.01);
Abstract
The present invention provides process for preparation of dihydroxy benzoquinoline compound (III) comprising reacting dihydroxy isoquinoline compound (IV) or a salt thereof with (2-acetyl-4-methyl-pentyl)-trimethyl-ammonium iodide (V) and further converting it to tetrabenazine (I) and deutetrabenazine (II).