New tetrahydropyran isonucleoside derivatives of purine, with cis or trans configuration, were stereoselectively synthesized in moderate yield by a convergent strategy based on Mitsunobu coupling. The key starting material was a bicyclic lactone.
通过一种基于三忍偶联的聚合策略,以中等收率立体选择性地合成了顺式或反式构型的新的
四氢吡喃嘌呤异核苷衍
生物。关键的起始材料是一种双环内酯。