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. 05, 1999
Filed:
Aug. 19, 1997
Applicant:
Inventors:
K S Murthy, Brantford, CA;
Allan W Rey, Brantford, CA;
Assignee:
Brantford Chemicals Inc., , CA;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ;
U.S. Cl.
CPC ...
546185 ; 546197 ; 546236 ;
Abstract
This invention relates to new stereoselective processes for preparing 3-substituted-4-aryl piperidines and methods for controlling the absolute stereochemistry at the C-3 and C-4 positions of the piperidine ring. Compounds of this type are key intermediates in the preparation of paroxetine, femoxetine, and other medicaments.