Synthesis and Use of Glycosyl Phosphates as Glycosyl Donors
作者:Obadiah J. Plante、Rodrigo B. Andrade、Peter H. Seeberger
DOI:10.1021/ol9905452
日期:1999.7.1
Differentially protected glycosyl phosphates prepared by a straightforward synthesis from glycal precursors are used as powerful glycosyl donors. Activation of beta-glycosyl phosphates by TMSOTf at -78 degrees C achieves the selective formation of beta-glycosidic linkages in excellent yields with complete stereoselectivity. Reaction with thiols results in the conversion of glycosyl phosphates into thioglycosides