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13 - alkyl - 23 - imino and 13 - halo - 23 - imino derivatives of d - f28249 compounds and their use as endo - and ectoparasitizide, insecticides, acaricides and nematicldes means.
13 - alkyl - 23 - imino and 13 - halo - 23 - imino derivatives of d - f28249 compounds and their use as endo - and ectoparasitizide, insecticides, acaricides and nematicldes means.
There are provided certain 13-alkyl-23-imino and 13-halo-23-imino-LL-F28249 compounds which are useful for controlling endo- and ectoparasites, insects, acarids and nematodes.
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