摘要 |
The invention relates to compounds of the general formula in which R<SUB>1</SUB>, R<SUB>2, R</SUB><SUB>3</SUB>, R<SUB>4</SUB>, R<SUB>5</SUB>, R<SUB>6</SUB>, W, X, A<SUB>1</SUB>, A<SUB>2</SUB>, a, b and c are as defined in the specification, and to any enantiomers thereof. The active ingredients have advantageous pesticidal properties. They are particularly suitable for controlling parasites in warm-blooded animals. |