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. 27, 2007
Filed:
Jul. 29, 2005
Applicants:
Cheng Yi Chen, Plainsboro, NJ (US);
Paul N. Devine, Tinton Falls, NJ (US);
Bruce S. Foster, Scotch Plains, NJ (US);
Greg Hughes, Beaconsfield, CA;
Paul O'shea, Westmount, CA;
Inventors:
Cheng Yi Chen, Plainsboro, NJ (US);
Paul N. Devine, Tinton Falls, NJ (US);
Bruce S. Foster, Scotch Plains, NJ (US);
Greg Hughes, Beaconsfield, CA;
Paul O'Shea, Westmount, CA;
Assignee:
Merck Frosst Canada Ltd., Quebec, CA;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 229/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
This invention describes a reductive amination process whereby perfluorinated ketones or ketals are combined with α-aminoesters under basic conditions to form metal carboxylates. Diastereoselective reductions of the metal carboxylates enable access to two diastereomers, depending on the reducing conditions.