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:
Feb. 07, 2017
Filed:
Oct. 16, 2015
Applicant:
Industriale Chimica S.r.l., Milan, IT;
Inventors:
Roberto Lenna, San Giorgio su Legnano, IT;
Riccardo Di Brisco, Trecate, IT;
Francesco Barbieri, Bovisio Masciago, IT;
Assignee:
INDUSTRIALE CHIMICA, S.r.l., , IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07J 21/00 (2006.01);
U.S. Cl.
CPC ...
C07J 21/003 (2013.01);
Abstract
An improved process for the preparation of intermediate (V) through the elimination of a molecule of water from intermediate (IV) is described. Intermediate (V) is a key molecule for the synthesis of eplerenone, a synthetic steroid with pharmacological activity used in the treatment of chronic pathological conditions, including hypertension.