| abstract |
Disclosed are avermectin B1 derivatives of formula (I), wherein: R1 is alkyl, cycloalkyl or alkenyl, R2 is H, optionally substituted alkyl, alkenyl, alkynyl, or -C(O)R4 or SO2R4, R3 is H, optionally substituted alkyl, cycloalkyl, alkenyl, or alkynyl, or R2 and R3 together form a 3-7 membered alkylene bridge or a 4-7 membered alkenylene bridge, wherein one CH2 may be replaced by O, S or NR5; or they form =N+=N-, and the remaining substituents are defined herein. The derivatives of formula (I) are used as the active ingredients in pesticidal compositions. |