[(4S,5S)-5-((2S,3R)-2,3-Bis-benzyloxy-3-[1,3]dithian-2-yl-1-methylene-propyl)-2,2-dimethyl-[1,3]dioxolan-4-ylmethoxy]-tert-butyl-diphenyl-silane 在
calcium carbonate 、
碘甲烷 作用下,
以98%的产率得到(2R,3S)-2,3-Bis-benzyloxy-4-[(4S,5S)-5-(tert-butyl-diphenyl-silanyloxymethyl)-2,2-dimethyl-[1,3]dioxolan-4-yl]-pent-4-enal