(R, R, R)-4-[(3,5-bistrifluoromethylphenyl)-hydroxy-methyl]-2-ethyl-6-trifluoromethyl-3,4-dihydro-2H-quinoline-1-carboxylic acid ethyl ester 、
甲基磺酰氯 在
三乙胺 作用下,
以
二氯甲烷 为溶剂,
以99%的产率得到(R,R,R)-4-[(3,5-bis-trifluoromethylphenyl)-methanesulfonyloxy-methyl]-2-ethyl-6-trifluoromethyl-3,4-dihydro-2H-quinoline-1-carboxylic acid ethyl ester