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. 01, 2014
Filed:
Sep. 27, 2012
Applicant:
Sanofi, Paris, FR;
Inventors:
Xavier Bon, Paris, FR;
Corinne Leroy, Paris, FR;
Assignee:
SANOFI, Paris, FR;
Primary Examiner:
Int. Cl.
CPC ...
C07C 229/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
This disclosure relates to a process for preparing 5-aminobenzofuran derivatives of general formula (I): in which Rand Rare as defined in the description,by treating a 5-N-alkylamidobenzofuran derivative of general formula (II): in which R, R, and Rare as defined in the description, with a strong acid, so as to form an acid addition salt of the compound of formula (I), which salt is itself treated, if necessary, with a basic agent so as to form this compound of formula (I) in free base form.