作者:Sönke Jessel、Chris Meier
DOI:10.1002/ejoc.201001473
日期:2011.3
New divergent approaches to 2',3'-modified carbocyclic L -nucleoside analogues starting from enantiomerically pure (1R,2S)- or (1S,2R)-2-(benzyloxymethyl)cyclopent-3-enol are described. In the key step, stereochemically pure cyclopentanols were condensed with N3-protected thymine through a modified Mitsunobu protocol. Moreover, several routes to different cyclopentanol derivatives, to prepare carbocyclic
描述了从对映体纯 (1R,2S)-或 (1S,2R)-2-(苄氧基甲基)cyclopent-3-enol 开始的 2',3'-修饰的碳环 L-核苷类似物的新发散方法。在关键步骤中,立体化学纯环戊醇通过改进的 Mitsunobu 协议与 N3 保护的胸腺嘧啶缩合。此外,通过不同的环戊醇衍生物,制备碳环L -2',3'-didehydro-2',3'-dideoxynucleosides (L -d4N), L -2',3'-dideoxynucleosides (L -ddN),和L-核糖核苷被报道。