Synthesis of two phosphate-containing “heptasaccharide” fragments of the capsular polysaccharides of Streptococcus pneumoniae types 6A and 6B
作者:Ted M. Slaghek、Augustinus A.M. Mass、Johannis P. Kamerling、Johannes F.G. Vliegenthart
DOI:10.1016/0008-6215(91)84143-3
日期:1991.4
(1----3)-O-alpha-L-rhamnopyranosyl-(1----4)-D-ribit-5-yl sodium phosphate] (27), which are structural elements of the capsularpolysaccharides of Streptococcuspneumoniaetypes6A and 6B ([----2)- -alpha-D-Galp-(1----3)-alpha-D-Glcp-(1----3)-alpha-L-Rhap- (1----X)-D-RibOH-(5-P----]n; 6A X = 3, 6B X = 4), respectively, have been synthesized. 2,4-Di-O-acetyl- 3-O-[2,4,6-tri-O-acetyl-3-O-(2,3,4,6-tetra-O-acetyl-alpha-D-