Described is the efficient preparation of 2,3-anhydro-β-d-lyxofuranosyl pyrimidine nucleosides via the coupling of a 2,3-anhydrosugar-containing glycosyl donor (5 or 6) with a silylated nucleoside base. The products are obtained with a high degree of stereoselectivity and in 65-77% yield.
描述了通过将含有2,3-脱
水糖的糖基供体(5或6)与
硅烷化核苷碱基偶联,高效制备2,3-脱
水-β-d-
来苏糖呋喃核苷的过程。所得产物具有高度的立体选择性,收率为65-77%。