Cyclic Amidine Sugars as Transition-State Analogue Inhibitors of Glycosidases: Potent Competitive Inhibitors of Mannosidases
作者:Marie-Pierre Heck、Stéphane P. Vincent、Brion W. Murray、François Bellamy、Chi-Huey Wong、Charles Mioskowski
DOI:10.1021/ja037822r
日期:2004.2.1
A series of monocyclic glycoamidines bearing different exocyclic amine, alcohol, or alkyl functionalities and bicyclic amidines derived from D-glucose and D-mannose were synthesized and tested as inhibitors of various glycosidases. All the prepared compounds demonstrated good to excellent inhibition toward glycosidases. In particular, the biscationic D-mannoamidine 9b bearing an exocyclic ethylamine
合成了一系列带有不同环外胺、醇或烷基官能团的单环糖脒和衍生自 D-葡萄糖和 D-甘露糖的双环脒,并作为各种糖苷酶的抑制剂进行了测试。所有制备的化合物都表现出对糖苷酶的良好至极好的抑制作用。特别是,带有环外乙胺部分的双阳离子 D-甘露脒 9b 被证明是 α- 和 β-甘露糖苷酶(K(i) = 6 nM)的选择性竞争抑制剂,使其成为迄今为止报道的这些糖苷酶的最有效抑制剂。与其他糖苷酶相比,有利的 B(2,5) 船构象可能解释了甘露糖苷酶抑制的选择性。