modification of the lysine moiety, additional chain-extended derivatives as well as fluorescent compounds were obtained. All fluorescent iminoalditol-amino acid hybrids prepared in this study exhibited glycosidase inhibitory activities better than or comparable to the parent compounds'.
通过D-xylo-hexos-5-ulose与α-N-Boc-
赖氨酸甲酯的末端
氨基的双重还原胺化进行环化,得到(1'R)-N-甲氧基羰基-(1的4:1混合物-N-Boc-
氨基)戊基-1-脱氧野oji霉素和相应的L-ido差向异构体,而D-lyxo-hexos-5-ulose提供了所需的N-烷基化的1-脱氧甘露灵霉素衍
生物,而在C-5上没有任何可观察到的差向异构体形成。通过赖
氨酸部分的后续修饰,获得了另外的扩链衍
生物以及荧光化合物。在这项研究中制备的所有荧光亚
氨基糖醇-
氨基酸杂种均表现出比母体化合物更好或相当的糖苷酶抑制活性。