Spiro-sulfamidate and sulfate nucleosides via 2′ and 3′-C-branched-chain sugars and nucleosides
作者:Jérôme Lalot、Tony Tite、Anne Wadouachi、Denis Postel、Albert Nguyen Van Nhien
DOI:10.1016/j.tet.2011.06.030
日期:2011.8
C-branched-chain sugars and nucleosides were obtained by organocatalysis from ulose derivatives. After a reduction step, the corresponding 1,3-diol was derivatized into 3′-spiro-sulfamidates and unexpected sulfates by treatment with a Burgess reagent. Deprotection of the Boc-derivatives was carried out while preserving the cyclic sulfate. An example of ring opening of the cyclic sulfate derivative
通过有机催化从果糖衍生物获得C-支链糖和核苷。在还原步骤之后,通过用Burgess试剂处理,将相应的1,3-二醇衍生为3'-螺氨基磺酸盐和意外的硫酸盐。在保留环状硫酸盐的同时,进行Boc衍生物的脱保护。给出了环状硫酸盐衍生物与叠氮化钠开环导致相应的3'- C-叠氮烷基支链核苷的开环的实例。