ABSTRACT: Phosphoethanolamine derivatives of the bacterial saccharide l-glycero-d-manno-heptose have been prepared using a phosphoramidite-based coupling reaction at position 4 of a side-chain-protected 2,3-O-orthoester methyl heptoside and at position 3 of a 3,4-diol heptoside, respectively. Global deprotection afforded the corresponding 2-aminoethylphosphodiester derivatives as substrates for crystallographic
摘要:利用基于亚
磷酰胺的偶联反应,在侧链保护的 2,3-O-原酸酯甲基庚糖苷的 4 位和 3 位上制备了细菌糖 L-
甘油-d-甘露庚糖的
磷酸乙醇胺衍
生物。分别是3,4
-二醇庚苷。整体脱保护提供了相应的 2-
氨基
乙基磷酸二酯衍
生物作为底物,用于针对细菌脂
多糖内核结构的凝集素和
抗体的晶体学和结合研究。图形概要: