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. 29, 2019
Filed:
Oct. 28, 2016
Applicant:
Industriale Chimica S.r.l., Milan, IT;
Inventors:
Roberto Lenna, S. Giorgio su Legnano, IT;
Roberto Di Brisco, Trecate, IT;
Assignee:
INDUSTRIALE CHIMICA S.R.L., Milan, IT;
Primary Examiner:
Int. Cl.
CPC ...
C07C 45/00 (2006.01); C07C 49/00 (2006.01); C07C 49/513 (2006.01);
U.S. Cl.
CPC ...
C07C 45/004 (2013.01); C07C 49/513 (2013.01); C07C 2603/12 (2017.05);
Abstract
The present invention relates to a new process for the synthesis of 17β-hydroxy-des-A-androst-9,10-en-5-one, the compound of the following formula (1), which can be used as an intermediate in the synthesis of retroprogesterones.