Synthesis of Lupane-Type Saponins Containing an Unusual α-<scp>D</scp>-Idopyranoside Fragment as Potent Cytotoxic Agents
作者:Piotr Cmoch、Anna Korda、Lucie Rárová、Jana Oklešt'ková、Miroslav Strnad、Katarzyna Gwardiak、Romuald Karczewski、Zbigniew Pakulski
DOI:10.1002/ejoc.201402187
日期:2014.7
practical method for the preparation of benzoyl protected allyl and benzyl α-D-idopyranosides, and D-idopyranosyl trichloroacetimidate, from 1,2,3,4,6-penta-O-acetyl-α-D-idopyranose, is described. All derivatives can be prepared on a multigram scale and require only simple chromatographic purification. A concise synthesis of lupane triterpenes bearing an unusual D-idopyranoside fragment is described. All
描述了一种从 1,2,3,4,6-五-O-乙酰基-α-D-吡喃糖制备苯甲酰基保护的烯丙基和苄基 α-D-吡喃糖苷和 D-吡喃三氯乙酰亚胺酯的实用方法。所有衍生物都可以以多克规模制备,并且只需要简单的色谱纯化。描述了带有不寻常的 D-吡喃糖苷片段的羽扇豆三萜的简明合成。所有新化合物都在体外评估了它们的细胞毒活性。新型皂苷在微摩尔范围内对人类癌细胞系(包括 T 淋巴细胞白血病 CEM、乳腺癌 MCF7 和宫颈癌 HeLa)表现出有趣的细胞毒活性,但也对正常人成纤维细胞 BJ 具有抑制作用。