| 摘要 |
Insecticides and parasiticides The present invention relates to novel derivatives of formula I that can be derived from milbemycins, to their preparation and their use for controlling pests, and also to pesticides that contain at least one of these compounds as active ingredient. The novel compounds have the general formula I (I) in which X is one of the groups -CH(OR1)-, -C(O)- or -C(=N-OR)-; R1 is hydrogen or an OH-protecting group; R is hydrogen, an OH-protecting group, or an alkyl or cycloalkyl group; R2 is methyl, ethyl, isopropyl or sec.-butyl; and Ph is a phenyl ring that is substituted by Ra, Rb, Rc and Rd, wherein each of Ra, Rb, Rc and Rd, independently of the others, is hydrogen, C1-C10alkyl, C2-C10alkoxyalkyl, C2-C10alkenyl, C1-C10alkoxy, C2-C10alk-oxyalkoxy, or a phenyl or phenoxy radical that is unsubstituted or is substituted by at least one substituent from the group C1-C3alkyl and C1-C3alkoxy. |
