Treatment of 5-deoxy-5-iodo-1,2-O-isopropylidene-β-O-methyl-α-D-xylofuranose with ethyl phenylphosphinothioate in the presence of sodium hydride, followed by the reduction with sodium dihydrobis(2-methoxyethoxy)aluminate, and then with 0.5 M HCl–EtOH gave the title compounds, which were characterized as the 1,2,4-O-triacetates.
在氢化
钠的存在下用苯基
硫代
膦酸乙酯处理 5-deoxy-5-iodo-1,2-O-isopropylidene-β-O-methyl-α-D-xylofuranose,然后用二氢双(2-甲氧基乙氧基)
钠还原)铝酸盐,然后用 0.5 M HCl-EtOH 得到标题化合物,其特征为 1,2,4-O-三
乙酸盐。