主权项 |
1. A compound of formula I, wherein, Z is hydrogen, C1-C4 alkyl or C1-C4 haloalkyl, unsubstituted or substituted phenyl; Y is unsubstituted or substituted phenyl; or Z and Y together with the adjacent carbon atom form an unsubstituted or substituted group selected from the following group: acenaphthyl, phenanthryl, and C5-C8 cycloalkyl, wherein the substituted phenyl, acenaphthyl, phenanthryl or cycloalkyl has 1 to 5 substituents selected from the following group: halogen, C1-C4 alkyl and C1-C4 haloalkyl; R1 and R2 are independently H, halogen, C1-C8 alkyl, C1-C8 haloalkyl, unsubstituted or substituted phenyl, —O—Ra, —CH2—O—Ra, —SRb or —CH2—S—Rb, wherein Ra and Rb are independently C1-C8 alkyl, unsubstituted or substituted phenyl; R3 and R4 are independently H, halogen, C1-C8 haloalkyl, —O—Ra, —CH2—O—Ra SRb or —CH2—S—Rb, wherein Ra and Rb are independently C1-C8 alkyl, unsubstituted or substituted phenyl; and provided that of R1, R2, R3 and R4, R1≠(R3 and R4) and/or R2≠(R3and R4); the substituted phenyl has 1 to 5 substituents selected from the following group: halogen, C1-C4 alkyl and C1-C4 haloalkyl; R5, R6 and R7 are independently halogen, nitro, hydrogen, C1-C8 alkyl, C1-C8 haloalkyl, —O—Ra, or —CH2—O—Ra, wherein Ra is C1-C8 alkyl, unsubstituted or substituted phenyl; the substituted phenyl has 1 to 5 substituents selected from the following group: halogen, C1-C4 alkyl and C1-C4 haloalkyl. |