USE OF SUBSTITUTED 1,2,4-TRIAZINDIONES FOR COMBATING PARASITAL PROTOZOES.

摘要

The present invention relates to the use of substituted 1,2,4-triazinediones of the general formula (I) …IMAGE… in which … …  R1 is optionally substituted pyridyl, pyrazinyl or pyrimidinyl, …  X is O, S, SO, SO2 or -CR4)CN)-, …  R2 is hydrogen, one or more identical or different radicals from the group comprising hydrogen, halogen, nitro, alkyl, alkoxy, alkylthio, halogenoalkyl, halogenoalkoxy, alkylthio, halogenoalkylthio, …  R3 is hydrogen, optionally substituted alkyl, alkenyl, alkynyl, aralkyl, …  R4 is hydrogen or alkyl, … for controlling parasitic protozoa.