Patent ID: 6664248
Filing Date: 2003-12-16
Classification: A01N,C07D

Abstract:
A compound of formula whereinA is an unsubstituted or substituted aromatic or non-aromatic, monocyclic or bicyclic heterocyclic radical wherein a ring nitrogen atom may have been replaced by a group(N-oxide);R1 is hydrogen Of C1-C3alkyl; R2 is hydrogen or C1-C3alkyl; R3 is hydrogen, an unsubstituted or substituted C1-C6alkyl, C3-C6cycloalkyl, C2-C6alkenyl or C2-C6alkynyl group, or C(&boxH;O)â€”R5, R5 is C1-C4alkyl, C1-C4alkoxy, an unsubstituted or substituted phenyl, phenoxy or benzyloxy group, or N(R6)2, each R6, independently of the other, is hydrogen, C1-C4alkyl or unsubstituted or substituted phenyl, X is CHâ€”NO2, Nâ€”CN or Nâ€”NO2 and n is from 1 to 3, in free form or in salt form, or, where appropriate, a tautomer of such a compound or a salt thereof.