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:
Aug. 13, 1991
Filed:
Oct. 19, 1989
Applicant:
Inventors:
Paul Smith, Harlow, GB;
Gillian E Smith, Harlow, GB;
Assignee:
Beecham Pharmaceuticals, Essex, GB;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
546185 ;
Abstract
A process for preparing a compound of formula (I): ##STR1## in which Ar represents an aryl or substituted aryl group and R.sup.3 represents an alkyl group, which comprises reducing a compound of formula (II): ##STR2## in which Ar and R.sup.3 are as defined for formula (I), and Hal represents a halogen atom.