作者:Ferenc Sztaricskai、Erzsébet Roth、Mária Andrei、István F. Pelyvás、Pál Herczegh
DOI:10.1246/cl.2007.1012
日期:2007.8.5
The reaction of dimethyl squarate with aminodeoxy sugars, aminodeoxy alditols, amino aldonic acids, and glycosyl amines under neutral conditions furnished the squaric amide esters, which were converted in more alkaline media (pH ≈8) into the asymmetric squaric diamides. The unprotected squaric acid amide esters are suitable for constructing a specific anchor (spacer, linker) function that favorably influences the water-solubility of the resulting drugs and glycoconjugates.
二甲基方酸酯与氨基去氧糖、氨基去氧醇、氨基醛酸和糖基胺在中性条件下反应,生成了方酸酰胺酯,这些方酸酰胺酯在更碱性的介质(pH≈8)中转化成不对称方酸二酰胺。不受保护的方酸酰胺酯适合用于构建特定的锚固(间隔、连接)功能,这些功能对生成的药物和糖缀合物的水溶性有积极影响。