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:
Jun. 09, 1987
Filed:
Oct. 01, 1984
Applicant:
Inventors:
Assignee:
Janssen Pharmaceutica, N.V., Beerse, BE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
548155 ;
Abstract
A process for isolating levamisole or a therapeutically acceptable acid addition salt thereof from tetramisole or an acid addition salt thereof by precipitating levamisole. L-N-[(4-methoxyphenyl)sulfonyl]-glutamic acid (salt) and converting the diastereomeric salt into levamisole or a suitable acid addition salt thereof.