Synthesis of Selenium Analogues of the Naturally Occurring Glycosidase Inhibitor Salacinol and Their Evaluation as Glycosidase Inhibitors
作者:Blair D. Johnston、Ahmad Ghavami、Morten T. Jensen、Birte Svensson、B. Mario Pinto
DOI:10.1021/ja020299g
日期:2002.7.1
L-erythritol-1,3-cyclic sulfate. The use of 1,1,1,3,3,3-hexafluoro-2-propanol as a solvent in the coupling reaction proves to be beneficial. Enzyme inhibition assays indicate that 10 is a better inhibitor (K(i) = 0.72 mM) of glucoamylase than 3, which has a K(i) value of 1.7 mM. In contrast, 11 showed no significant inhibition of glucoamylase. Compounds 10 and 11 showed no significant inhibition of
描述了天然存在的锍离子,salacinol (3) 的两种硒类似物(10 和 11)的合成。Salacinol 是斯里兰卡和印度传统上用于治疗糖尿病的五层龙水提取物中的有效成分之一。合成策略依赖于 2,3,5-tri-O-benzyl-1,4-anhydro-4-seleno-D-arabinitol 在苄基或亚苄基保护的 D-或L-赤藓糖醇-1,3-环硫酸盐。在偶联反应中使用 1,1,1,3,3,3-六氟-2-丙醇作为溶剂被证明是有益的。酶抑制试验表明,10 是一种比 3 更好的葡糖淀粉酶抑制剂(K(i) = 0.72 mM),后者的 K(i) 值为 1.7 mM。相比之下,11 没有显示对葡糖淀粉酶的显着抑制。