Patent ID: 6020497
Filing Date: 2000-02-01
Classification: C07D

Abstract:
A compound having the structure (II): ##STR9## wherein the ring nitrogen is acylated with R.sub.1 --CO--, where R.sub.1 is C.sub.1 -C.sub.4 linear or branched alkyl, 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 is optionally substituted with 1-3 of 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 II.