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:
Oct. 02, 2012
Filed:
Jun. 12, 2009
Applicants:
Gabriel Tojo Suárez, A Caruña, ES;
Ana Gavaldá Escudé, Barcelona, ES;
Inventors:
Gabriel Tojo Suárez, A Caruña, ES;
Ana Gavaldá Escudé, Barcelona, ES;
Assignee:
Medichem, S.A., , ES;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 231/12 (2006.01); C07C 233/05 (2006.01);
U.S. Cl.
CPC ...
Abstract
Disclosed is a process for preparing anti-inflammatory compound nepafenac comprising preparing a compound of formula (V) wherein a N-halosuccinimide is used as the halogenating agent, followed by desulfurization using Raney Nickel. Also disclosed is a polymorphic form B of 2-amino-3-benzoyl-α-(methylthio)-benzeneacetamide (i.e., a compound of formula (V) wherein R is methyl