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. 01, 2000
Filed:
Oct. 09, 1998
Applicant:
Inventor:
Roger N Farr, Whitehouse Station, NJ (US);
Assignee:
Merck & Co., Inc., Rahway, NJ (US);
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
548240 ;
Abstract
Disclosed are compounds of the formula: ##STR1## where R is selected from the group consisting of C.sub.1 -C.sub.4 linear or branched alkyl, trifluoromethyl, halo, phenyl, biphenyl and naphthyl, wherein the aromatic group can be substituted with C.sub.1 -C.sub.4 linear or branched alkyl, trifluoromethyl, or halo; and wherein the asterisked 3-position ring carbon is either in (R) or (S) configuration, or racemate form, and salts thereof formula I. The compounds are useful in chiral synthesis, for example, producing naturally occurring L-amino acids, e.g., alanine, from aliphatic acid precursors.