The present invention provides cyclic depsipeptides of Formula (1), stereoisomers thereof, and veterinary acceptable salts thereof (1) wherein each of R1, R2, R3, R4, L1, and L2, are as defined herein. The present invention also contemplates compositions and methods of treatment as an endoparasiticide with a Formula (1) compound.
                            本发明提供了公式(1)的环状脱
氨肽,其立体异构体以及兽医可接受的盐(1),其中R1、R2、R3、R4、L1和
L2中的每一个如本文所定义。本发明还考虑了作为内寄生虫药物的组合物和治疗方法,其中包含公式(1)化合物。