作者:Hans Paulsen、Thomas Peters
DOI:10.1016/0008-6215(87)80101-5
日期:1987.8
The tetrasaccharides O-alpha-D-mannopyranosyl-(1----3)-O-[alpha-D- mannopyranosyl-(1----6)]-O-(4-deoxy-beta-D-lyxo-hexopyranosyl)-(1- ---4)-2- acetamido-2-deoxy-alpha, beta-D-glycopyranose (22) and O-alpha-D-mannopyranosyl-(1----3)-O-[alpha-D-mannopyranosyl-(1----6)]-O- beta-D-talopyranosyl-(1----4)-2-acetamido-2-deoxy-alpha, beta-D- glucopyranose (37), closely related to the tetrasaccharide core structure
四糖O-α-D-甘露吡喃糖基-(1 ---- 3)-O- [α-D-甘露吡喃糖基-(1 ---- 6)]-O-(4-脱氧-β-D-lyxo -己基吡喃糖基)-(1- --- 4)-2-乙酰氨基-2-脱氧-α,β-D-甘露糖(22)和O-α-D-甘露吡喃糖基-(1 ---- 3)-O -[α-D-甘露吡喃糖基-(1 ---- 6)]-O-β-D-talopyranosyl-(1 ---- 4)-2-acetamido-2-deoxy-alpha,β-D-pyranypyranose (37)合成了与N-糖蛋白的四糖核心结构密切相关的化合物。从1,6-脱水-2,3-二-O-异亚丙基-β-D-甘露吡喃糖开始,糖基供体3,6-二-O-乙酰基-2-O-苄基-2,4-二脱氧-α以良好的收率获得了-D-lyxo-己基吡喃糖基溴化物(10)和3,6-二-O-乙酰基-2,4-二-O-苄基-α-D-塔吡喃糖基溴化物(30)。将10或30与1