Agents for use against parasitic protozoa

Details Agents for use against parasitic protozoa Agents for use against parasitic protozoa

A - Human Necessities

61

K

A61K 31/415 (2006.01) A01N 43/52 (2006.01) A01N 43/54 (2006.01) A01N 43/60 (2006.01) A01N 43/707 (2006.01) A01N 43/80 (2006.01) A01N 43/90 (2006.01) A01N 57/32 (2006.01) A61K 31/35 (2006.01) A61K 31/44 (2006.01) A61K 31/47 (2006.01) A61K 31/505 (2006.01) A61K 31/52 (2006.01) A61K 31/53 (2006.01) A61K 45/06 (2006.01)

Patent

CA 2222517

The present invention relates to mixtures of substituted benzimidazoles and polyether antibiotics or synthetically prepared coccidiostats for controlling parasitic protozoa in livestock. The substituted benzimidazoles have the structure: (see formula I) wherein: R1, R2, R3 and R4 each, independently of one another, represent: (i) H or a halogen atom, or (ii) optionally substituted alkyl, alkoxy, alkylthio, alkylsulphinyl, alkylsulphonyl or fused-on dioxyalkylene, with the proviso that all of the substituents R1, R2, R3 and R4 are not H and a halogen atom; R5 represents: (i) H, (ii) alkyl which is substituted one or more times, identically or differently, by OH, CN, NH2, alkyl, cycloalkyl, alkenyl, alkinyl, alkoxy, halogenoalkoxy, alkylthio, halogenoalkylthio, alkenoxy, alkinoxy, aminocarbonyl, optionally substituted alkylcarbonyl, optionally substituted (het-)arylcarbonyl, optionally substituted alkoxycarbonyl (AlkO-CO-), optionally substituted alkoxycarbonyloxy (AlkOCOO-), aminosulphonyl (SO2NH2), optionally substituted mono- or dialkylaminosulphonyl, acylated amino (AlkCON(R7)- or AlkOCON(R7)-), wherein R7 represents H, alkyl, cycloalkyl, optionally substituted alkylsulphonylamino (AlkylSO2NH-), alkylsulphonyl-N-alkylamino (ArylSO2NAlky1-), optionally substituted arylsulphonylamino (ArylSO2NH-), arylsulphonyl-N- alkylamino (ArylSO2NAlk-) or optionally substituted dialkylamino, or (iii) optionally substituted alkoxycarbonyl, optionally substituted (het-)aryloxycarbonyl, alkylsulphonyl, alkenylsulphonyl, (het-)arylsulphonyl, -SO2NR8R9, -CONR8R9 or -P(O)(NR8R9)2, wherein R8 and R9 represent H or alkyl which is optionally substituted by one or more radicals; and R6 represents fluoroalkyl.

L'invention concerne des mélanges de 2-fluoroalkyl-benzimidazols substitués et d'antibiotiques polyéthers ou d'agents anti-coccidiose fabriqués synthétiquement (par exemple, amprolium, toltrazuril, robénidine, halofuginone, monensine, salinomycine) destinés à lutter contre des protozoaires parasites chez les animaux.

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