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. 13, 2021
Filed:
May. 25, 2017
Applicant:
Dr. Reddy's Laboratories Limited, Hyderabad, IN;
Inventors:
Sudhir Sai, Hyderabad, IN;
Debjit Basu, Hyderabad, IN;
Kumar Sarvesh, Secunderabad, IN;
Uday Kumar Neelam, Hyderabad, IN;
Amit Kumar Mandal, Hyderabad, IN;
Rakeshwar Bandichhor, Sultanpur, IN;
Vilas Hareshwar Dahanukar, Hyderabad, IN;
Assignee:
DR. REDDY'S LABORATORIES LIMITED., Hyderabad, IN;
Primary Examiner:
Int. Cl.
CPC ...
C07D 307/28 (2006.01); C07D 493/22 (2006.01); C07F 7/18 (2006.01); C07C 233/18 (2006.01);
U.S. Cl.
CPC ...
C07D 307/28 (2013.01); C07C 233/18 (2013.01); C07D 493/22 (2013.01); C07F 7/1804 (2013.01);
Abstract
The present application relate to a process for preparation of 4-Methylene tetrahydrofuran compound of formula II, which is useful as an intermediate for the preparation of halichondrin B analogues such as Eribulin.