The invention recites a chiral process for the synthesis of isoxazoline azetidine phenyl substituted derivatives of Formula (1) stereoisomers thereof, veterinarily acceptable salts thereof, processes for making, and their use as a parasiticide in an animal. The variables *, R
1a
, R
1b
, R
1c
, R
2
, and R
3
are as described herein
本发明涉及一种手性过程,用于合成式(1)的异构体、兽医可接受的盐及其苯基取代衍
生物的异构体,制备过程以及它们在动物寄生虫治疗方面的应用。其中变量*、R1a、R1b、R1c、R2和R3的定义如本文所述。