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:
Jan. 27, 2015
Filed:
Mar. 30, 2012
Applicants:
Hitesh Batra, Herndon, VA (US);
Raju Penmasta, Ashburn, VA (US);
Vijay Sharma, Olney, MD (US);
Sudersan M. Tuladhar, Silver Spring, MD (US);
David A. Walsh, Spotsylvania, VA (US);
Inventors:
Hitesh Batra, Herndon, VA (US);
Raju Penmasta, Ashburn, VA (US);
Vijay Sharma, Olney, MD (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:
Int. Cl.
CPC ...
C07C 51/353 (2006.01); C07C 59/72 (2006.01); C07C 51/09 (2006.01); C07C 51/367 (2006.01); C07C 67/343 (2006.01); C07C 253/30 (2006.01); C07F 7/18 (2006.01);
U.S. Cl.
CPC ...
C07C 59/72 (2013.01); C07C 51/09 (2013.01); C07C 51/367 (2013.01); C07C 67/343 (2013.01); C07C 253/30 (2013.01); C07F 7/1892 (2013.01); C07B 2200/07 (2013.01);
Abstract
The present invention is directed to a novel method for preparing a synthetic intermediates for treprostinil. Also described are methods of preparing treprostinil comprising utilizing novel intermediates described herein as well as novel intermediates useful for synthesis prostacyclin derivatives, such as treprostinil.