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:
Nov. 09, 2021
Filed:
Aug. 10, 2018
Applicant:
Dr. Reddy's Laboratories Limited, Hyderabad, IN;
Inventors:
Divya Jyothi Kallem, Hyderabad, IN;
Rajesh Thipparaboina, Mancherial, IN;
Deepika Pathivada, Vijayanagaram, IN;
Vishweshwar Peddy, Hyderabad, IN;
Shanmukha Prasad Gopi, Visakhapatnam, IN;
Assignee:
DR. REDDY'S LABORATORIES LIMITED, Hyderabad, IN;
Primary Examiner:
Int. Cl.
CPC ...
C07D 217/26 (2006.01); C07C 275/02 (2006.01); C07D 207/16 (2006.01); C07D 213/82 (2006.01);
U.S. Cl.
CPC ...
C07D 217/26 (2013.01); C07C 275/02 (2013.01); C07D 207/16 (2013.01); C07D 213/82 (2013.01); C07B 2200/13 (2013.01);
Abstract
The present invention provides crystalline Roxadustat Form-γ, crystalline Roxadustat Form-δ, process for the preparation of crystalline Roxadustat Form-γ, crystalline Roxadustat Form-δ and its pharmaceutical compositions thereof. The present invention also provides co-crystals of Roxadustat Form RLP, Roxadustat Form RNM and Roxadustat Form RU, process for their preparation and pharmaceutical composition thereof.