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:
Feb. 24, 2015
Filed:
Jul. 12, 2010
Applicants:
Kaushik Babubhai Sata, Gujarat, IN;
Bipin Pandey, Gujarat, IN;
Inventors:
Kaushik Babubhai Sata, Gujarat, IN;
Bipin Pandey, Gujarat, IN;
Assignee:
Cadila Healthcare Limited, Ahmedabad, Gujarat, IN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 239/34 (2006.01);
U.S. Cl.
CPC ...
C07D 239/34 (2013.01);
Abstract
The invention relates to improved processes for the preparation of ambrisentan. The invention also relates to a novel intermediate useful in the preparation of ambrisentan and a process for the preparation of the intermediate. The invention also relates to new polymorphic form of ambrisentan. In particular, it relates to a polymorphic form, designated as Form I of ambrisentan and a process for the preparation of the Form I.