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:
Aug. 03, 2021
Filed:
Jul. 02, 2018
Applicants:
Aurobindo Pharma Limited, Hyderabad, IN;
Hero Velladurai, Hyderabad, IN;
Janardhana Rao Vascuri, Hyderabad, IN;
Ravi Shankar Sathu, Hyderabad, IN;
Sivakumaran Meenakshisunderam, Hyderabad, IN;
Inventors:
Hero Velladurai, Hyderabad, IN;
Janardhana Rao Vascuri, Hyderabad, IN;
Ravi Shankar Sathu, Hyderabad, IN;
Sivakumaran Meenakshisunderam, Hyderabad, IN;
Assignee:
Aurobindo Pharma Ltd, Hyderabad, IN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 249/08 (2006.01); C07D 265/22 (2006.01);
U.S. Cl.
CPC ...
C07D 249/08 (2013.01); C07D 265/22 (2013.01);
Abstract
The present invention provides an improved process for the preparation of Deferasirox of Formula-I substantially free from 'hydrazino impurity' by the condensation of 2-(2-hydrophenyl)-4H-1,3-benzoxazin-4-one of Formula-IV with 4-hydrazino benzoic acid of Formula-V in a polar solvent.