Methyl 2,3-O-isopropylidene-β-d-ribopyranoside was converted (in 4 steps) into methyl 4-deoxy-4-[(dimethoxy)phosphinyl]-2,3-O-isopropylidene-β-d-ribopyranoside (10a, 30% overall yield). The title compounds were readily derived from 10a and characterized as the 4-deoxy-4-(methoxyphosphinyl) tetraacetates.
将甲基 2,3-O-异亚丙基-β-d-
吡喃
核糖苷(分 4 步)转化为甲基 4-脱氧-4-[(二甲氧基)膦酰基]-2,3-O-异亚丙基-β-d-
吡喃
核糖苷(10a,总收率 30%)。标题化合物很容易从 10a 中衍生出来,并表征为 4-脱氧-4-(甲氧基膦酰基)
四乙酸酯。