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. 24, 2017
Filed:
Dec. 22, 2011
Applicants:
Walter Giust, Toronto, CA;
Fabio Souza, Mississauga, CA;
Jan Oudenes, Aurora, CA;
Boris Gorin, Oakville, CA;
Elena Bejan, Brantford, CA;
Inventors:
Walter Giust, Toronto, CA;
Fabio Souza, Mississauga, CA;
Jan Oudenes, Aurora, CA;
Boris Gorin, Oakville, CA;
Elena Bejan, Brantford, CA;
Assignee:
EON LABS, INC., Princeton, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 51/43 (2006.01); C07C 51/41 (2006.01);
U.S. Cl.
CPC ...
C07C 51/412 (2013.01); C07C 51/43 (2013.01);
Abstract
Disclosed is a process for preparing a treprostinil salt. The process involves the step of dissolving treprostinil in a water-miscible organic solvent to form a treprostinil solution. The treprostinil solution is reacted with an aqueous basic solution containing an alkali metal cation to form treprostinil salt. Allowing crystallization of the treprostinil salt to take place, and then collecting the treprostinil salt formed.