A compound of formula (I) wherein R1 to R4 are, for example, each hydrogen, R5 is, for example, a substituted phenol R6 is, for example, hydrogen R7 is, for example, hydrogen, cyano, hydroxyl, formyl, C1-C4-alkyl, C1-C4-alkoxy, C2-C4-alkenyl, or C2-C4-alkynyl and A1 to A5 is, for example, A1 is N or C-X, A3 is C-X, and A2, A4 and A5 are C-H, where X, is, for example, halogen and its use as a pesticidal agent.具有式(I)之化合物其中R1至R4,例如,每一者都是氫,R5係,例如,取代酚;R6係,例如,氫;R7係,例如,氫、氰基、羥基、甲醯基、C1-C4-烷基、C1-C4-烷氧基、C2-C4-烯基或者C2-C4-炔基;並且A1至A5係,例如,A1係N或者C-X,A3是C-X,並且A2、A4以及A5係C-H,其中X係,例如,鹵素;以及其作為殺有害生物劑之用途。
