Synthesis and Comparative Glycosidase Inhibitory Properties of Reducing Castanospermine Analogues
作者:Paula Díaz Pérez、M. Isabel García-Moreno、Carmen Ortiz Mellet、José M. García Fernández
DOI:10.1002/ejoc.200500071
日期:2005.7
(thio)carbamates with a pseudo-C-nucleoside structure to the masked carbonyl group in aldose precursors in the synthesis of reducing (i.e., 5-hydroxy)6-oxaindolizidine frameworks is illustrated by the preparation of the 6-epi, 7-epi, 8-epi and 6,8a-di-epi diastereomers of the potent glycosidase inhibitor (+)-castanospermine. In all cases, the increased anomeric effect caused by the high sp2 character