3,3′-Oxybis(dimethoxytrityl chloride) (O-DMTCl): synthesis and applications of a novel bifunctional protecting group
作者:Natsuhisa Oka、Yogesh S. Sanghvi、Emmanuel A. Theodorakis
DOI:10.1016/j.bmcl.2004.03.097
日期:2004.6
3,3(')- Oxybis(dimethoxytrityl chloride) (O-DMTCl) was synthesized as a novel, acid-labile bifunctional protecting reagent. The reactions of O-DMTCl with base-protected ribonucleosides afforded unexpectedly 2('),5(')-cyclic protected ribonucleosides in addition to the expected 3('),5(')-cyclic protected ribonucleosides in good yields.
合成了3,3(')-氧代双(二甲氧基三苯甲基氯)(O-DMTC1)作为新型的,酸不稳定的双功能保护剂。O-DMTC1与碱基保护的核糖核苷的反应,除了预期的3('),5(')-环保护的核糖核苷以外,还意外地提供了2('),5(')-环保护的核糖核苷。