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:
Mar. 15, 2022
Filed:
Dec. 15, 2017
Applicant:
Richter Gedeon Nyrt., Budapest, HU;
Inventors:
Sándor Mahó, Budapest, HU;
János Csörgei, Budapest, HU;
Csaba Sánta, Budapest, HU;
Péter Vincze, Kóka, HU;
László Balogh, Budapest, HU;
János Horváth, Budapest, HU;
Zoltán Béni, Maglód, HU;
Assignee:
Richter Gedeon Nyrt., Budapest, HU;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07J 75/00 (2006.01); C07J 7/00 (2006.01);
U.S. Cl.
CPC ...
C07J 75/00 (2013.01); C07J 7/0045 (2013.01);
Abstract
The invention relates to the last step of a synthetic process, in which Nomegestrol-acetate of formula (I) is synthesized from 17α-acetoxy-6-methylene-19-norpregn-4-ene-3,20-dione of formula (II) in the presence of Pd/C catalyst and acetic acid in hot ethanolic solution.