The First Total Synthesis of a Highly Branched Arabinofuranosyl Hexasaccharide Found at the Nonreducing Termini of Mycobacterial Arabinogalactan and Lipoarabinomannan
作者:Francis W. D'Souz、Todd L. Lowary
DOI:10.1021/ol005907g
日期:2000.5.1
[GRAPHICS]The first total synthesis of the arabinofuranosyl hexasaccharide present at the nonreducing termini of mycobacterial arabinogalactan and lipoarabinomannan is reported. The oligosaccharide was prepared as its methyl glycoside via a route that is both highly efficient and convergent. Addition of two beta-D arabinofuranosyl residues simultaneously in high yield and with excellent stereocontrol was the key step of the synthesis.