Preparation of the pentasaccharide hapten of the GPL of Mycobacterium avium serovar 19 by achieving the glycosylation of a tertiary hydroxyl group
作者:Anikó Fekete、Katalin Gyergyói、Katalin E. Kövér、István Bajza、András Lipták
DOI:10.1016/j.carres.2006.04.038
日期:2006.7
The chemical synthesis of the glycopeptidolipid-type pentasaccharide hapten of Mycobacterium avium serovar 19 with a trifluoroacetamido spacer at the reducing end is described. The spacer-armed pentasaccharide 31, when conjugated to an immunogenic protein, can be applied to the serodiagnosis of mycobacterial infections. The questionable structure of the penultimate monosaccharide unit was clarified
描述了在还原端具有三氟乙酰氨基间隔基的鸟分枝杆菌血清型19的糖肽脂质型五糖半抗原的化学合成。当间隔臂五糖31与免疫原性蛋白质缀合时,可以用于分枝杆菌感染的血清诊断。倒数第二个单糖单元的可疑结构被澄清为6-脱氧-3-C-甲基-2,4-二-O-甲基-L-甘露吡喃糖。存在大的H-1'-H-2'偶联常数可以排除6-脱氧-3-C-甲基-2,4-二-O-甲基-L-塔拉吡喃糖的存在,这证明了4C1(L)构象为偏爱的构象。