y-6-diethoxyphosphinyl-1,2-O-isopropylidene-beta-D-fructofu ranose (13) was prepared from the known 1,2-O-isopropylidene-6-O-tosyl-beta-D-fructofuranose in five steps. Reduction of 13 with sodium dihydrobis(2-methoxyethoxy)aluminate, followed by the action of hydrochloric acid and then hydrogen peroxide, afforded the 6-deoxy-6-hydroxyphosphinyl-D-fructopyranose derivative. This was converted into the
由已知的1,2-O-异亚丙基-6-制备3,4-二-O-苄基-6-脱氧-6-二乙氧基次膦酰基-1,2-O-异亚丙基-β-
D-果糖呋喃糖(13)。 O-tosyl-beta-
D-果糖呋喃糖分五个步骤。用二氢双(2-甲氧基乙氧基)
铝酸钠还原13,然后用
盐酸然后
过氧化氢作用,得到6-脱氧-6-羟基次膦酰基-
D-果糖基
吡喃糖衍
生物。将其转化为1,2,3,4,5-戊-O-乙酰基-6-脱氧-6-甲氧基亚膦酰基-
D-果糖吡喃糖,其结构和构象通过1H NMR光谱确定。