A series of polyhydroxylated bicyclic nucleoside derivatives is approached applying stereoselective dihydroxylation reactions. Three out of four isomeric and protected products were obtained after the stereoselectivity of dihydroxylation has been completely inverted comparing a bicyclic nucleoside with a tricyclic furanose substrate. A corresponding 2â²-deoxynucleoside derivative has been obtained after an optimized deoxygenation procedure.
采用立体选择性二羟基化反应制备了一系列多羟基化的双环核苷衍
生物。在与
三环呋喃糖底物比较时,二羟基化的立体选择性完全反转后,获得了四种异构体中三种的保护产物。经过优化的去氧程序,得到了相应的2'-脱氧核苷衍
生物。