作者:Martynenkov、Lagoda、Batyrenko、Yakimansky
DOI:10.1134/s107036322404011x
日期:——
Abstract The structure of previously unknown condensation products of a series of aldoses (N-acetyl-D-glucosamine, D-mannose, D-galactose, and L-fucose) with 4-mercaptobutyric acid hydrazide, promising glyco-ligands of noble metal nanoparticles, has been studied by means of 1H and 13C NMR spectroscopy. It has been shown that the derivatives of N-acetyl-D-glucosamine, D-mannose, and D-galactose exist
抽象的 一系列醛糖(N-乙酰基-D-葡萄糖胺、D-甘露糖、D-半乳糖和L-岩藻糖)与4-巯基丁酸酰肼的先前未知的缩合产物的结构,有前途的贵金属纳米粒子的糖配体,已通过 1 H 和 13 C NMR 光谱进行了研究。研究表明,N-乙酰基-D-氨基葡萄糖、D-甘露糖和D-半乳糖的衍生物在DMSO-d溶液中以开放腙和环状吡喃糖形式的互变异构混合物存在 6 。线性腙形式由一组 Z',E' 构象异构体表示,其取代基相对于酰胺 C-N 键的排列不同,且数量相当。从L-岩藻糖获得的缩合产物在结晶状态和DMSO-d 6 溶液中是唯一的环状吡喃糖结构,由单一β-构型异构体代表。