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:
Jul. 04, 1989
Filed:
Jul. 29, 1988
Applicant:
Inventors:
Attilio Citterio, Milan, IT;
Daniele Fancelli, Milan, IT;
Assignee:
Blaschim, S.p.A., , IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
562460 ; 548486 ; 562433 ; 562491 ;
Abstract
A method of preparing ketoprofen by reacting aniline with a halide of an alpha-halogen propionic acid, benzylation of 3-methyl-2-indolinone, alkaline hydrolysis of 5-benzyl-3-methyl-2-indolinone, deamination of 2-(3-benzyl-6-aminophenyl)propionic acid and oxidation of 2-(3-benzylphenyl)propionic acid.