N-[2-((2S,4aR,5aR,8S,9aS,9bS)-2,8-Diphenyl-hexahydro-bis[1,3]dioxino[5,4-b;4',5'-d]pyrrol-5-yl)-2-oxo-ethyl]-4-methyl-N-(3-oxo-3-phenyl-propyl)-benzenesulfonamide 以70%的产率得到((2S,4aR,5aR,8S,9aS,9bS)-2,8-Diphenyl-hexahydro-bis[1,3]dioxino[5,4-b;4',5'-d]pyrrol-5-yl)-[(2S,3S)-3-hydroxy-3-phenyl-1-(toluene-4-sulfonyl)-pyrrolidin-2-yl]-methanone