14,15-DIHYDRO-14,15- METHYLENEMILBEMYCIN DERIVATIVES, THEIR PREPARATION AND THEIR USE AS PARASITICIDES AND INSECTICIDES

摘要

new compounds of the formulawhata groupmeans whatru2081 hydrogen or oh - working party and ru2081u2081 for hydrogen, oh working party, an alkyl -, cycloalkyl or acylgruppe saysru2082 methyl, ethyl, isopropyl, sec butyl, or the group - c (chu2083) = ch - e means wherein e is methyl, ethyl or isopropyl,ru2083 and ru2084 share a bond between the two kohlenstoffu00adatomen to which you are bound together, or the group - c (xu02b9) (zu02b9), wherein xu02b9 and zu02b9 independently hydrogen or halogen, andx and z each independently represent hydrogen or halogen, and the production of the new compounds and their use against parasites in animals and insects.