| abstract |
The compounds of formula (I) of the present invention and their salts, which are suitable for use in agriculture, horticulture, medicine or veterinary medicine, can be used in the preparation of pharmaceutical or veterinary preparations for controlling various parasites such as mites, helminths and insects. In the formula (I), R 1 is methyl, ethyl, isopropyl or sec-butyl; R 2 is hydrogen or C 1-6 alkyl, R 3 is optionally substituted alkanoyl or alkenoyl, and alkylsulfonyl or alkoxycarbonyl, or R 2 and R 3 taken together with the nitrogen to which they are attached form a 4-6 membered heterocyclic ring together with carbon to which it is attached forms a 3-6 membered cycloalkyl group. SHE |