Zhang Jianjun, Kong Fanzuo
Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
Bioorg Med Chem. 2003 Sep 1;11(18):4027-37. doi: 10.1016/s0968-0896(03)00391-2.
Two hexasaccharides, beta-D-Xylp-(1-->2)-alpha-D-Manp-(1-->3)-[beta-D-Xylp-(1-->2)-]alpha-D-Manp-(1-->3)-[beta-D-GlcpA-(1-->2)-]alpha-D-Manp and beta-D-GlcpA-(1-->2)-alpha-D-Manp-(1-->3)-[beta-D-Xylp-(1-->2)-]alpha-D-Manp-(1-->3)-[beta-D-Xylp-(1-->2)-]alpha-D-Manp, the repeating unit of the exopolysaccharide from Cryptococcus neoformans serovar A, were synthesized as their methyl glycosides in a regio- and stereoselective manner.
两种六糖，即β-D-木糖基-(1→2)-α-D-甘露糖基-(1→3)-[β-D-木糖基-(1→2)-]α-D-甘露糖基-(1→3)-[β-D-葡萄糖醛酸-(1→2)-]α-D-甘露糖和β-D-葡萄糖醛酸-(1→2)-α-D-甘露糖基-(1→3)-[β-D-木糖基-(1→2)-]α-D-甘露糖基-(1→3)-[β-D-木糖基-(1→2)-]α-D-甘露糖，新型隐球菌A血清型胞外多糖的重复单元，以区域和立体选择性方式合成了它们的甲基糖苷。
