Use of pyrimidine compounds in the preparation of parasiticides

摘要

The invention relates to the use of compounds of the general formula <CHEM> wherein R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, X1 and X2 have the significances given in claim 1, and optionally the enantiomers and geometrical isomers thereof, for controlling parasites on warm-blooded animals.