Scope and Limitations of 2-Deoxy- and 2,6-Dideoxyglycosyl Bromides as Donors for the Synthesis of β-2-Deoxy- and β-2,6-Dideoxyglycosides
作者:Miho Kaneko、Seth B. Herzon
DOI:10.1021/ol501101f
日期:2014.5.16
It is shown that 2-deoxy- and 2,6-dideoxyglycosyl bromides can be prepared in high yield (72–94%) and engaged in glycosylation reactions with β:α selectivities ≥6:1. Yields of product are 44–90%. Fully armed 2-deoxyglycoside donors are viable, while 2,6-dideoxyglycosides require one electron-withdrawing substituent for high efficiency and β-selectivity. Equatorial C-3 ester protecting groups decrease