Patent ID: 6049006
Filing Date: 2000-04-11
Classification: C07C

Abstract:
A compound of the formula: ##STR4## wherein: R.sup.1, R.sup.2, and R.sup.3 are independently hydrogen, or C.sub.1 -C.sub.6 alkyl;R.sup.4 is hydrogen or C.sub.1 -C.sub.6 alkyl;And when R.sup.1, R.sup.2, and R.sup.3 are all hydrogen, R.sup.5 is C.sub.3 -C.sub.8 cycloalkyl, or --(CH.sub.2).sub.n Ar.sup.1 where n is 1-6, and when one or R.sup.1, R.sup.2, and R.sup.3 is not hydrogen, R.sup.5 is hydrogen, C.sub.1 -C.sub.6 alkyl, C.sub.3 -C.sub.8 cycloalkyl or --CH.sub.2).sub.n Ar.sup.1 where n is 0-6, wherein Ar.sup.1 is phenyl, naphthyl, furanyl, pyridinyl or thienyl and Ar.sup.1 is optionally substituted by halogen, cyano, nitro, C.sub.1 -C.sub.6 alkyl, phenyl, C.sub.1 -C.sub.6 alkoxy, phenoxy, trifluoromethyl, C.sub.1 -C.sub.6 alkoxycarbonyl, --CO.sub.2 H or OH; andAr is phenyl, naphthyl, furanyl, pyridinyl or thienyl where Ar is optionally substituted by halogen, cyano, nitro, C.sub.1 -C.sub.6 alkyl, phenyl, C.sub.1 -C.sub.6 alkoxy, phenoxy, trifluoromethyl, C.sub.1 -C.sub.6 alkoxycarbonyl, --CO.sub.2 H or OH.