(3aS,4R,6S,6aR)-4-(2-Amino-phenylcarbamoyl)-2,2,6-trimethyl-tetrahydro-[1,3]dioxolo[4,5-c]pyrrole-5-carboxylic acid benzyl ester 在
溶剂黄146 作用下,
以100%的产率得到(2S,3S,4R,5S)-2-(1H-benzoimidazol-2-yl)-1-benzyloxycarbonyl-3,4-isopropylidenedioxy-5-methylpyrrolidine