重氮甲烷 、 (4S,5S,6R)-4-((1S,2R)-2-Benzyloxymethoxy-4-[1,3]dioxolan-2-yl-1-methyl-butyl)-2,2,5-trimethyl-6-{(R)-1-[(2S,3S,6S)-3-methyl-6-((R)-1-methyl-allyl)-3,6-dihydro-2H-pyran-2-yl]-ethyl}-[1,3]dioxane 在
sodium periodate 、
四氧化锇 、 jones reagent 作用下,
生成
(S)-2-((2S,5S,6S)-6-{(R)-1-[(4R,5S,6S)-6-((1S,2R)-2-Benzyloxymethoxy-4-[1,3]dioxolan-2-yl-1-methyl-butyl)-2,2,5-trimethyl-[1,3]dioxan-4-yl]-ethyl}-5-methyl-5,6-dihydro-2H-pyran-2-yl)-propionic acid methyl ester