Synthesis and Biological Evaluation of α-Tubulin-Binding Pironetin Analogues with Enhanced Lipophilicity
作者:Miguel Carda、Juan Murga、Santiago Díaz-Oltra、Jorge García-Pla、Julián Paños、Eva Falomir、Chiara Trigili、J. Fernando Díaz、Isabel Barasoain、J. Alberto Marco
DOI:10.1002/ejoc.201201283
日期:2013.2
Four new lipophilic analogues of the natural pyrone pironetin have been prepared. The C9 side-chain of the latter has been replaced in one analogue by a 4-phenylbutyl chain and in the other three analogues by C13 or C16 aliphatic chains, all of them bearing two stereogenic centres. Their cytotoxic activities and interactions with tubulin have been investigated. It was found that all four are cytotoxic
已经制备了四种新的天然吡喃酮吡罗酮的亲脂性类似物。后者的 C9 侧链在一个类似物中被 4-苯基丁基链取代,在其他三个类似物中被 C13 或 C16 脂肪链取代,它们都带有两个立体中心。已经研究了它们的细胞毒活性和与微管蛋白的相互作用。发现所有四种对两种敏感或抗性肿瘤细胞系均具有细胞毒性,在每种情况下具有相似的 IC50 值,这表明,与母体天然化合物一样,它们也显示出共价作用机制。然而,其中一个很可能通过与吡罗酮非常相似的机制起作用,而其他三个似乎通过不同的机制起作用。