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:
Feb. 18, 1986
Filed:
Feb. 29, 1984
Applicant:
Inventors:
Jorgen A Christensen, Virum, DK;
Peer Everland, Bagsvaerd, DK;
Assignee:
A/S Ferrosan, Soborg, DK;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
546236 ;
Abstract
A process for the optical resolution of the enantiomers of trans-3-[(4-methoxyphenoxy)-methyl]-1-methyl-4-phenylpiperidine, which involves reaction with an enantiomer of mandelic acid to form a mixture of diastereomeric compounds, precipitating one of the diastereoisomers, and converting it to the desirable free (+)-trans isomer, as well as the key diastereomeric isomer intermediate, is disclosed.