| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for protecting an animal from a parasitic pest infestation.SOLUTION: A method comprises treating an animal by orally or by injection with, e.g., a compound of general formula 1 in the figure where Ris Cl, Ris H, Ris Cl, Ris a methyl group, Ris H, and Ris 2-pyridinylmethyl group.SELECTED DRAWING: None |
