(E)-5-Benzyloxy-3-(benzyl-phenyl-amino)-2-cyanomethyl-pent-2-enoic acid ethyl ester 以
乙腈 为溶剂,
生成 (2S,3R)-1-Benzyl-2-(2-benzyloxy-ethyl)-3-cyanomethyl-2,3-dihydro-1H-indole-3-carboxylic acid ethyl ester 、 (2R,3R)-1-Benzyl-2-(2-benzyloxy-ethyl)-3-cyanomethyl-2,3-dihydro-1H-indole-3-carboxylic acid ethyl ester