Stereospecific Access to β-Mannosides from Glucose-derived 1,2-Orthoesters as Glycosyl Donors
作者:Eisuke Kaji、Yugo Hosokawa、Yusuke Watanabe、Mina Kobayashi、Mayumi Yamakawa
DOI:10.3987/com-03-s60
日期:——
A new, stereospecific synthesis of beta-mannosides from glucose-derived 1,2-orthoesters has been developed by a simple four step procedure, comprising beta-specific glycosidation of the 1,2-orthoesters, 2'-O-deacetylation, 2'-O-triflation, and SN 2 type inversion of the triflyl group providing beta-D-Man-(1-->6)-D-Gal, and beta-D-Man-(1-->4)-D-Glc derivatives in reasonable yield.