| 摘要 |
There are described novel C(29)-carbonyloxy-milbemycin derivatives of the formula I, their preparation and their use for combating pests, furthermore pesticides which contain at least one of these compounds as active substance. These compounds have the formula I …<IMAGE>… in which… X is -CH(OR1)-, -C(O)- or -C(=N-OH)-;… R1 is hydrogen, a silyl group or an acyl group, or a sugar radical,… R2 is methyl, ethyl, isopropyl or sec. butyl and… R is hydrogen, unsubstituted or substituted straight-chain or branched C1-C18-alkyl groups, unsubstituted or substituted C3-C10-cycloalkyl groups, unsubstituted or substituted C2-C6-alkenyl groups, unsubstituted or substituted C2-C6-alkinyl groups or unsubstituted or substituted phenyl groups. |
