(2R)-2-ethyl-4-hydroxy-6-trifluoromethyl-3,4-dihydro-2H-quinoline-1-carboxylic acid iso-propyl ester 在
氯化亚砜 作用下,
反应 1.0h,
生成 (2R,4R)-2-ethyl-4-chloro-6-trifluoromethyl-3,4-dihydro-2H-quinoline-1-carboxylic acid iso-propyl ester 、 (2R,4S)-2-ethyl-4-chloro-6-trifluoromethyl-3,4-dihydro-2H-quinoline-1-carboxylic acid iso-propyl ester