(1S,3S,3aR,6aS)-2-((4S,5S)-2,2-Dimethyl-4-phenyl-[1,3]dioxan-5-yl)-3-(4-methoxy-phenyl)-4,6-dioxo-5-phenyl-octahydro-pyrrolo[3,4-c]pyrrole-1-carboxylic acid methyl ester 在
对甲苯磺酸 作用下,
以
甲醇 为溶剂,
反应 24.0h,
以100%的产率得到(3S,4S,6S,6aR,9aS,9bS)-4-Hydroxymethyl-6-(4-methoxy-phenyl)-3,8-diphenyl-hexahydro-pyrrolo[3',4':3,4]pyrrolo[2,1-c][1,4]oxazine-1,7,9-trione