abstract |
Use of a heterocyclic derivative represented by the following general formula (1) or a salt thereof as an active ingredient, (See formula) in which R1 and R2 are the same or different and each optionally represent an aryl (C6-10) optionally substituted, and the substituents are 1 to 3 and are the same or different selected from the group consisting of halogen, (C1-6) alkyl, halo (C1-6) alkyl, aryl (C6-10) -alkyl (C1-6) , (C1-6) alkoxy, (C1-6) alkyl-thio, (C1-6) alkoxy-C1-6 alkyl, (C1-6) alkyl-sulfonyl, hydroxy, amino, mono- (C1-6) alkyl -amino, dialkyl (C1-6) -amino, carboxy, cyano and nitro, Y represents N, N -> O or CR5, Z represents N or CR6, and R5, R6 are the same or different and each represents hydrogen, (C1-6) alkyl or halogen, A represents NR7 or SO, and R7 represents hydrogen, (C1-6) alkyl, (C2-6) alkenyl or (C3-8) cycloalkyl. |