logo

For the Inventor, By the Inventor

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.:

US 9562067 B1

PDFFull Text
Date of Patent:
Feb. 07, 2017

Filed:

Dec. 15, 2014

Process for the production of 19-norpregn-4-en-3,20-dione-17α-ol(gestonorone) and intermediates therefor

Applicant:

Richter Gedeon Nyrt., Budapest, HU;

Inventors:

János Csörgei, Budapest, HU;

Anita Horváth, Nagykanizsa, HU;

Csaba Sánta, Budapest, HU;

Sándor Mahó, Budapest, HU;

Zoltán Béni, Maglód, HU;

János Horváth, Budapest, HU;

Assignee:

RICHTER GEDEON NYRT., Budapest, HU;

Attorney:

Jason D. Voight

Primary Examiner:

Paul A Zucker

Int. Cl.
CPC ...
C07J 7/00 (2006.01); C07J 41/00 (2006.01); C07C 51/00 (2006.01); C07J 1/00 (2006.01); C07J 51/00 (2006.01);
U.S. Cl.
CPC ...
C07J 1/0081 (2013.01); C07J 1/0059 (2013.01); C07J 7/006 (2013.01); C07J 41/0094 (2013.01); C07J 51/00 (2013.01);
Abstract

The present invention relates to a new stereoselective process for the synthesis of 17(α)-17-acetyl-17-hydroxy-estr-4-en-3-one of formula (I), as well as to the new intermediates of the process. The 17(α)-17-acetyl-17-hydroxy-estr-4-en-3-one (gestonorone) is an important intermediate in the synthesis of the active ingredients having progestogen activity—such as gestonorone capronate and nomegestroi acetate. Formulas (I), (II) and (III).

Find Patent Forward Citations

Csörgei, János. (2017). Process for the production of 19-norpregn-4-en-3,20-dione-17α-ol(gestonorone) and intermediates therefor (U.S. Patent No. 9562067). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9562067

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…