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:
Sep. 15, 2020
Filed:
Jan. 31, 2019
Applicant:
United Therapeutics Corporation, Silver Spring, MD (US);
Inventors:
Hitesh Batra, Herndon, VA (US);
Sudersan M. Tuladhar, Silver Spring, MD (US);
David A. Walsh, Spotsylvania, VA (US);
Assignee:
United Therapeutics Corporation, Silver Spring, MD (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 67/343 (2006.01); C07C 45/67 (2006.01); C07C 45/81 (2006.01); C07C 67/31 (2006.01); C07C 67/333 (2006.01); C07C 45/64 (2006.01); C07C 45/78 (2006.01);
U.S. Cl.
CPC ...
C07C 67/343 (2013.01); C07C 45/64 (2013.01); C07C 45/67 (2013.01); C07C 45/78 (2013.01); C07C 45/81 (2013.01); C07C 67/31 (2013.01); C07C 67/333 (2013.01); C07C 2603/14 (2017.05);
Abstract
The present disclosure provides regioselective methods for synthesizing intermediates useful in making prostacyclin derivatives, such as treprostinil.