N-Glycosylation with Glycosyl Diethyl Phosphites: A Highly Stereoselective Synthesis of 2'-Deoxy-b-ribonucleosides
作者:Shunichi Hashimoto、Jun Inagaki、Hiroki Sakamoto、Ai Sano、Makoto Nakajima
DOI:10.3987/com-97-s80
日期:——
A facile and direct method for the construction of 2'-deoxy-beta-N-glycosidic linkages in 2'-deoxyribonucleoside synthesis has been developed by using 3-(3,4,5-trimethoxybenzoyl)-protected 2-deoxyribofuranosyl diethyl phosphites as a glycosyl donor in the presence of trimethylsilyl triflate, wherein coupling reactions with silylated pyrimidine bases have been found to exhibit beta-selectivities up to 96%.