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. 29, 2015
Filed:
Jul. 17, 2012
Applicants:
Ram Chander Aryan, New Delhi, IN;
Anamika Mishra, Puruliya, IN;
Pudi Giri Jagannadha Naidu, Vizakhapatnam, IN;
Ramnik Sharma, Gurgaon, IN;
Inventors:
Ram Chander Aryan, New Delhi, IN;
Anamika Mishra, Puruliya, IN;
Pudi Giri Jagannadha Naidu, Vizakhapatnam, IN;
Ramnik Sharma, Gurgaon, IN;
Assignee:
RANBAXY LABORATORIES LIMITED, New Delhi, IN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 491/044 (2006.01);
U.S. Cl.
CPC ...
C07D 491/044 (2013.01);
Abstract
The present invention provides a process for the preparation of asenapine maleate of Formula (I), comprising: intra-molecular cyclization of the intermediate of Formula (II) to obtain the intermediate of Formula (III) using aluminium halide.