Synthesis and glycosidase inhibitory activities of chain-modified analogues of the glycosidase inhibitors salacinol and blintol
作者:Ravindranath Nasi、Lyann Sim、David R. Rose、B. Mario Pinto
DOI:10.1016/j.carres.2007.02.020
日期:2007.9
The synthesis of chain-modified analogues of the naturally-occurring glycosidase inhibitor, salacinol, and its selenium analogue, blintol is described. The modification consists of a frame shift of the sulfate moiety by one carbon atom in the zwitterionic structures as well as an extension of the acyclic chain to five carbons. The target molecules were synthesized by alkylation of 1,4-anhydro-2,3,
描述了天然存在的糖苷酶抑制剂salacinol及其硒类似物blintol的链修饰类似物的合成。该修饰包括两性离子结构中硫酸盐部分的一个碳原子的移码以及无环链至五个碳的延伸。通过在环杂原子上将1,4-脱水-2,3,5-三-Op-甲氧基苄基-4-硫代(或硒代)-D-阿拉伯糖醇烷基化为2,3,5-三-来合成目标分子对甲氧基苄基D-或L-木糖醇-1,4-环硫酸盐,然后用三氟乙酸脱保护。四种化合物中的两种抑制重组人麦芽糖酶葡糖淀粉酶,后者是参与小肠中葡萄糖寡糖分解的关键肠酶之一,Ki值为20 +/- 4和53 +/- 5 microM。