| 摘要 |
1. Endoparasiticidal agent, characterized in that it contains at least one compound of the general formula I see diagramm : EP0033825,P9,F1 in which X represents oxygen or sulphur, R represents (C1 -C4 )-alkyl, R**1 represents (C1 -C4 )-alkyl, phenyl, (C1 -C4 )-alkoxy, (C1 -C4 )-alkylthio or (C1 -C4 )-alkylamino, R**2 represents phenyl or naphthyl, optionally substituted by halogen, cyano or nitro or by optionally halogen-substituted substituents from the series comprising (C1 -C4 )-alkyl, (C1 -C4 )-alkoxy or (C1 -C4 )-alkylthio and R**3 represents hydrogen or (C1 -C4 )-alkyl. |
