Synthesis and Utility of 2-Halo-O6-(benzotriazol-1-yl)-Functionalized Purine Nucleosides
作者:Shane M. Devine、Peter J. Scammells
DOI:10.1002/ejoc.201001395
日期:2011.2
An efficient synthesis of 2-halo-O6-(benzotriazol-1-yl)-substituted purinenucleosides has been accomplished via (benzotriazol-1-yloxy)tris(dimethylamino)phosphonium hexafluorophosphate (BOP)-mediated coupling and subsequent halogenation via diazotization of the 2-amino group of various protected guanosines and directly from guanosine itself. These products are amenable to substitution and coupling