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:
Apr. 25, 2017
Filed:
Oct. 27, 2016
Applicant:
Olon S.p.a., Rodano (MI), IT;
Inventors:
Tania Cristiano, Milan, IT;
Marco Alpegiani, Rodano, IT;
Assignee:
OLON S.P.A., Rodano, IT;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07J 31/00 (2006.01); C07J 43/00 (2006.01);
U.S. Cl.
CPC ...
C07J 31/006 (2013.01); C07J 43/003 (2013.01);
Abstract
Disclosed is a process for the preparation of abiraterone and abiraterone acetate with high yields and purity. A key element of the method is the isolation of a crystalline intermediate that makes the process particularly suitable for implementation on an industrial scale.