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:
Jul. 19, 2016
Filed:
Dec. 24, 2013
Applicant:
Wanbury Ltd., Navi Mumbai, Maharashtra, IN;
Inventors:
Nitin Sharadchandra Pradhan, Maharastra, IN;
Nilesh Sudhir Patil, Maharastra, IN;
Rajesh Ramchandra Walavalkar, Maharastra, IN;
Nilesh Subhas Kulkarni, Maharastra, IN;
Sandip Babanrao Pawar, Maharastra, IN;
Tarak Sambhaji Pawar, Maharastra, IN;
Assignee:
WANBURY LTD., Navi Mumbai, Maharashtra, IN;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D 265/32 (2006.01); C07D 413/10 (2006.01); C07D 413/14 (2006.01);
U.S. Cl.
CPC ...
C07D 413/10 (2013.01); C07D 265/32 (2013.01); C07D 413/14 (2013.01);
Abstract
This invention relates to novel intermediate, formula (A) for rivaroxaban and process for the preparation thereof. Further it extends to the process for preparation of rivaroxaban by using the said novel intermediate, by treating with 5-chlorothiophene carbonyl chloride to form the rivaroxaban derivatives of formula (B). The obtained formula (B) further treated with acid to form rivaroxaban.