CARBONYLOXY-CYANOMETHYL COMPOUNDS AS ANTIPARASITIC AGENTS.

摘要

The invention relates to compounds of the general formula (I), wherein Ar1, Ar2, R4, R5, R6, R7, R8, W, X, a and b have the significances given in claim 1, and optionally the enantiomers thereof. The active ingredients have advantageous pesticidal properties. They are especially suitable for controlling parasites on warm-blooded animals.