Selective Phosphitylation of the Primary Hydroxyl Group in Unprotected Carbohydrates and Nucleosides
作者:Steven M. Graham、Sarah C. Pope
DOI:10.1021/ol990769k
日期:1999.9.1
[reaction: see text] Carbohydrates and nucleosides containing a phosphate at the less-hindered primary hydroxyl group are often prepared using a protection/deprotection strategy. Herein we report that the phosphoramidite method can be used to selectively incorporate phosphorus at the primary hydroxyl group of O-unprotected carbohydrates and nucleosides; in situ oxidation of the resulting phosphite
[反应:见正文]通常使用保护/脱保护策略制备在较少受阻的伯羟基上含有磷酸盐的碳水化合物和核苷。本文中我们报道亚磷酰胺方法可用于将磷选择性地掺入O-未保护的碳水化合物和核苷的伯羟基上。所得亚磷酸三酯的原位氧化产生磷酸三酯。