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.

Date of Patent:
Oct. 19, 2004

Filed:

Oct. 09, 2003
Applicant:
Inventors:

Carlos Sunkel, Madrid, ES;

Julio Alvarez-Builla, Madrid, ES;

Nicolas G. Bazan, New Orleans, LA (US);

Anthony Vaccarino, Destrahan, LA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K 3/1195 ; C07C / ;
U.S. Cl.
CPC ...
A61K 3/1195 ; C07C / ;
Abstract

New analgesic compounds, which are prepared by the hydrolysis of N-acylated 4-hydroxyphenylamine derivatives, their synthesis and pharmaceutical compositions containing them are disclosed. These compounds surprisingly possess high analgesic activity with little hepatotoxic effect, making them more useful than conventional non-steroidal anti-inflammatory drugs (NSAIDs) in the treatment of chronic pain.


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