(2S)-2-[(4S,5S,6S)-6-[(4R)-2,2-dimethyl-1,3-dioxolan-4-yl]-2,2,5-trimethyl-1,3-dioxan-4-yl]propanal 、
N,N-Dimethyl-2-(dimethylsulfuranylidene)acetamide 以
二氯甲烷 为溶剂,
反应 12.0h,
以50%的产率得到(2S,3R)-3-[(1S)-1-[(4R,5S,6S)-6-[(4R)-2,2-dimethyl-1,3-dioxolan-4-yl]-2,2,5-trimethyl-1,3-dioxan-4-yl]ethyl]-N,N-dimethyloxirane-2-carboxamide