Patent ID: 6927193

Claim:
A compound represented the formula (I) or its salt: wherein X and Y are independent of each other and represent hydrogen, halogen, cyano, nitro, (C 1-4 )alkyl, (C 1-4 )haloalkyl, or (C 1-4 )haloalkoxy; Z is oxygen or sulfur; Q is A is oxygen, sulfur, or imino; R 1 is hydrogen, (C 1-4 )alkyl, or (C 1-4 )haloalkyl; R 2 and R 3 are independent of each other and are selected from the group consisting of hydrogen, halogen, cyano, nitro, (C 1-4 )alkyl, (C 1-4 )haloalkyl, (C 2-6 )alkenyl, (C 2-6 )haloalkenyl and amino which may be optionally substituted with (C 1-4 )alkyl or (C 1-4 )haloalkyl; Ar is a substituted or unsubstituted heterocyclic aromatic ring being at least a five or six membered ring.