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:
Jun. 02, 2009
Filed:
May. 05, 2004
Applicant:
Sébastien Rose, Arsy, FR;
Inventor:
Sébastien Rose, Arsy, FR;
Assignee:
Cephalon France, Maisons Alfort, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 231/24 (2006.01); C07C 231/02 (2006.01); C07C 315/04 (2006.01); C07C 315/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a process for preparing modafinil having a defined granulometry which comprises the steps of: a) preparing a solution of DMSAM; b) contacting the solution obtained with NH3 at a predetermined temperature and a predetermined stirring; and c) isolating the modafinil formed, wherein said temperature and said stirring are predetermined in order to obtain said defined granulometry.