Synthesis of a common polysaccharide antigen of Pseudomonas aeruginosa as the 6-aminohexyl glycoside
作者:Yury E. Tsvetkov、Leon V. Backinowsky、Nikolay K. Kochetkov
DOI:10.1016/0008-6215(89)85108-0
日期:1989.10
The synthesis is described of a tritylated 1,2-O-cyanoethylidene derivative (3) of the trisaccharide alpha-D-Rha-(1----2)-alpha-D-Rha-(1----3)-D-Rha. Triphenylmethylium perchlorate-catalysed polycondensation of 3 in the presence of 6-phthalimidohexyl 2,4-di-O-benzoyl-3-O-trityl-alpha-D-rhamnopyranoside followed by deprotection afforded the 6-aminohexyl glycoside of a D-rhamnan corresponding to a common
描述了三糖α-D-Rha-(1 ---- 2)-α-D-Rha-(1 ---- 3)的三苯甲基化1,2-O-氰基亚乙基衍生物(3) -D-Rha。在6-邻苯二甲酰亚胺己基2,4-二-O-苯甲酰基-3-O-三苯甲基-α-D-鼠李吡喃糖苷的存在下,高氯酸三苯甲酯催化的3缩聚反应得到相应的D-鼠李糖苷的6-氨基己基糖苷铜绿假单胞菌的常见多糖抗原。