(2R)-4-chloro-2-ethyl-6-trifluoromethyl-3,4-dihydro-2H-quinoline-1-carboxylic acid ethyl ester 、
5-(3,5-bis-trifluoromethyl-benzyl)-2-methyl-2H-tetrazole 在
sodium hydride 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 0.92h,
生成 (2R,4S)-4-[(3,5-bis-trifluoromethyl-phenyl)-(2-methyl-2H-tetrazol-5-yl)-methyl]-2-ethyl-6-trifluoromethyl-3,4-dihydro-2H-quinoline-1-carboxylic acid ethyl ester