The stereocontrolled synthesis of 1,2-trans hexopyranosyl nucleosides via a novel anomeric activation
作者:Stephen Hanessian、Jose J. Conde、Hoan Huynh Khai、Boliang Lou
DOI:10.1016/0040-4020(96)00611-4
日期:1996.8
yranosyl)-thiopyridylcarbonate, with silylated pyrimidine bases by activation with trimethylsilyl trifluoromethanesulfonate and silver triflate respectively afforded the corresponding 1,2-trans nucleosides with high selectivity.
2-(2',3',4',6'-四-O-苄基-β-D-己吡喃糖基氧基)-3-甲氧基吡啶的偶合以及2-(2',3',4',6通过与三氟甲磺酸三甲基甲硅烷基酯和三氟甲磺酸银活化而具有甲硅烷基化的嘧啶碱基的'-四-O-苄基-β-D-己吡喃糖基)-硫代吡啶基碳酸酯分别以高选择性提供了相应的1,2-反式核苷。