Synthesis of the pentasaccharide repeating unit of the O-specific polysaccharide from salmonella strasbourg
作者:N.K. Kochetkov、V.I. Torgov、N.N. Malysheva、A.S. Shashkov
DOI:10.1016/0040-4020(80)80065-2
日期:1980.1
The pentasaccharide α - Tyv - (1→3) - β - d - Man - (1→4) - α - l - Rha - (1→3) - d - Gal - (4←1) -α - d - Glc 1, the repeating unit of the O-specific polysaccharide chain of the lipopolysaccharide from S. Strasbourg, was obtained by glycosylation of benzyl - 2,6 - di - O - benzyl - 4 - O - (2,3,4 - tri - O - benzyl - 6 - O - benzoyl - α - d - glucopyranosyl) - β - d - galactopyranoside with 1,2 -
五糖α-Tyv-(1→3)-β-d-Man-(1→4)-α-l-Rha-(1→3)-d-Gal-(4←1)-α-d- Glc 1是来自斯特拉斯堡的脂多糖的O特异性多糖链的重复单元,是通过苄基-2,6-二-O-苄基-4-O-(2,3,4-tri -O-苄基-6-O-苯甲酰基-α-d-吡喃葡萄糖基)-β-d-吡喃半乳糖苷与1,2-甲基邻乙酰基-3-O-乙酰基-4- O-[3-O-(2,4-二-O-乙酰-3,6-双脱氧,-α-d-阿拉伯-己吡喃糖基)-2,4,6-三-O-乙酰基-β-d-甘露吡喃糖基]-β-l-鼠李糖吡喃糖3然后去除保护基团。通过甲基化分析证明了合成五糖的结构,结果131 H NMR。