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:
Mar. 13, 2007
Filed:
May. 10, 2004
Applicant:
David Alexander Learmonth, Alfena, PT;
Inventor:
David Alexander Learmonth, Alfena, PT;
Assignee:
Portela & C.A., S.A., Mamedo Do Coronado, PT;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07D 223/18 (2006.01);
U.S. Cl.
CPC ...
Abstract
A high-yielding method and a useful intermediate, 10-chloro-10,11-dihydro-5H-dibenz/b,f/azepine-5-carboxamide (VII) is disclosed. Also disclosed are methods for the racemization of optically pure or optically enriched mixtures of (S)-(+)-10,11-dihydro-10-hydroxy-5H-dibenz/b,f/azepine-5-carboxamide (I) and (R)-(−)-10,11-dihydro-10-hydroxy-5H-dibenz/b,f/azepine-5-carboxamide (II) to racemic (±)-10,11-dihydro-10-hydroxy-5H-dibenz/b,f/azepine-5-carboxamide (III).
Learmonth, David. (2007). Method for racemization of (s)-(+)- and (r)-(−)-10,11-dihydro-10-hydroxy-5h-dibenz[b,f]azepine-5-carboxamide and optically enriched mixtures thereof (U.S. Patent No. 7189846). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7189846
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