Patent ID: 6048824
Filing Date: 2000-04-11
Classification: A01N,C07D

Abstract:
A compound of formula ##STR38## wherein A is an unsubstituted or substituted heterocyclic radical selected from the group consisting of ##STR39## wherein a ring nitrogen atom may have been replaced by a group ##STR40## E is C.sub.1 -C.sub.3 alky; R.sub.1 is hydrogen or C.sub.1 -C.sub.3 alkyl;R.sub.2 is hydrogen or C.sub.1 -C.sub.3 alkyl;R.sub.3 is hydrogen, an unsubstituted or substituted C.sub.1 -C.sub.6 alkyl, C.sub.3 -C.sub.6 cycloalkyl, C.sub.2 -C.sub.6 alkenyl or C.sub.2 -C.sub.6 alkynyl group, or C(.dbd.O)--R.sub.5,R.sub.5 is C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, an unsubstituted or substituted phenyl, phenoxy or benzyloxy group, or N(R.sub.6).sub.2,each R.sub.6, independently of the other, is hydrogen, C.sub.1 -C.sub.4 alkyl or unsubstituted or substituted phenyl,X is CH--NO.sub.2, N--CN or N--NO.sub.2 andn is 1,in free form or in salt form, or, where appropriate, a tautomer of such a compound or a salt thereof.