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:
Oct. 13, 2020
Filed:
Mar. 20, 2017
Applicant:
Natco Pharma Limited, Hyderabad, IN;
Inventors:
Durga Prasad Konakanchi, Hyderabad, IN;
Buchappa Gongalla, Hyderabad, IN;
Uma Naresh Babu Kotra, Hyderabad, IN;
Srinivasulu Sakkani, Hyderabad, IN;
Dharmender Ragidi, Hyderabad, IN;
Kotayyababu Sikha, Hyderabad, IN;
Venkaiah Chowdary Nannapaneni, Hyderabad, IN;
Assignee:
NATCO PHARMA LIMITED, Hyderabad, IN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 417/12 (2006.01);
U.S. Cl.
CPC ...
C07D 417/12 (2013.01); C07B 2200/13 (2013.01);
Abstract
The present invention is related to an improved process for the preparation of dasatinib anhydrous crystalline Neat form N-6 with high purity and high yield. The present invention also relates to purification of dasatinib crystalline Neat form N-6.