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. 19, 2011
Filed:
Oct. 10, 2006
Applicants:
Natacha Frison, Creil, FR;
Benoit Folleas, Senlis, FR;
Jean-louis Brayer, Nanteuil le Haudoin, FR;
Inventors:
Assignee:
Pierre Fabre Dermo-Cosmetique, Boulogne-Billancourt, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07B 37/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention concerns a method for preparing a compound of formula (I), wherein: Rand Rrepresent in particular H and n is greater than 4, said preparation method including performing a Wittig-Horner reaction with a phosphonate on a lactol, so as to obtain a hydroxyester and, optionally a saponification reaction of said hydroxyester.