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:
May. 07, 2002
Filed:
Dec. 18, 2000
Applicant:
Inventors:
Assignee:
Darwin Discovery Ltd., , GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
C07D / ;
Abstract
An optically-enrichedpiperidine-2-carboxanlidecompound, in which the piperidine is optionally N-alkylated, is racemized by heating the compound in an aqueous medium, provided that the medium includes an organic co-solvent if the compound is N-alkylated. This process is particularly valuable, in conjunction with a resolution process, for the manufacture of levobupivacaine.
Dyer, Ulrich. (2002). Racemisation process for use in the manufacture of levobupivacaine and related piperidinecarboxanilide anaesthetic agents (U.S. Patent No. 6384227). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6384227
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile