(2R,4S)-4-amino-2-ethyl-6-trifluoromethyl-3,4-dihydro-2H-quinoline-1-carboxylic acid 2-methylsulfanyl-ethyl ester 、
溶剂黄146 在
sodium nitrite 作用下,
以
水 为溶剂,
反应 0.25h,
生成 (2R,4R)-2-ethyl-4-hydroxy-6-trifluoromethyl-3,4-dihydro-2H-quinoline-1-carboxylic acid 2-methylsulfanyl-ethyl ester 、 (2R,4S)-2-ethyl-4-hydroxy-6-trifluoromethyl-3,4-dihydro-2H-quinoline-1-carboxylic acid 2-methylsulfanyl-ethyl ester 、 (2R,4R)-2-ethyl-4-acetoxy-6-trifluoromethyl-3,4-dihydro-2H-quinoline-1-carboxylic acid 2-methylsulfanyl-ethyl ester 、 (2R,4S)-2-ethyl-4-acetoxy-6-trifluoromethyl-3,4-dihydro-2H-quinoline-1-carboxylic acid 2-methylsulfanyl-ethyl ester