COMPOSITION BASED ON DERIVATIVE OF N-PHENYL-N'-BENZOYLUREA AND DERIVATIVES OF NECTINE FOR PARASITE CONTROL Russian patent published in 2005 - IPC

FIELD: organic chemistry, veterinary science.

SUBSTANCE: invention relates to a method for control over exto- and endoparasites taken among group including acariform mites, parasitoformous mites and nematodes parasitizing in animals, productive cattle and domestic animals. Method involves applying veterinary preparation comprising 1-[4-chloro-3-(3-chloro-5-trifluoromethyl-2-pyridyloxy)phenyl]-3-(2,6-difluoro)urea and compound of the formula (i):

wherein R₁ means one of radicals:

or ; R₂ means -CH(CH₃)-CH₃, -CH(CH₃)-C₂H₅, -C(CH₃)=CH-CH(CH₃)₂ or cyclohexyl; R₃ means hydrogen atom or hydroxy-group if a bond between atoms 22 and 23 represents a double bond, or it means hydrogen atom or group =N-O-CH₃ if an ordinary bond presents between atoms 22 and 23; R₄ means HO-, and the preparation can be in free form or in physiologically acceptable form. Invention provides preparing preparations with good tolerance and rapid effect and persistence with respect to different helminth-associated diseases, parasitiformous and acariformous mites being without adverse effect on normal behavior of animals.

EFFECT: valuable properties of compounds.

7 cl, 3 tbl, 8 ex