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:
Apr. 26, 2005
Filed:
Oct. 02, 2000
Applicants:
Michael Schwarz, Weiterstadt, DE;
Jürgen Eckstein, Rossdorf, DE;
Inventors:
Michael Schwarz, Weiterstadt, DE;
Jürgen Eckstein, Rossdorf, DE;
Assignee:
MERCK Patent GmbH, Darmstadt, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D405/02 ;
U.S. Cl.
CPC ...
Abstract
The invention relates to a method for selectively dissociating cyclic carboxylic acid anhydrides. According to the inventive method, a chiral amino alcohol with a tertiary amino group that may have a partially or completely bridged structure is used as the chiral auxiliary reagent.