作者:Iris R. M. Tébéka、Giovanna B. Longato、Marcus V. Craveiro、João E. de Carvalho、Ana L. T. G. Ruiz、Luiz F. Silva
DOI:10.1002/chem.201202413
日期:2012.12.21
reported for cis‐trikentrins and herbindoles, which are indole alkaloids unsubstituted at the C2 and C3 positions that bear a trans‐1,3‐dimethylcyclopentyl unit. Herein, we describe the first asymmetric and stereoselective synthesis of the more challenging trans‐trikentrin A as its naturally occurring isomer. Different approaches were investigated and the strategy of choice was a combination of an enzymatic
顺式-trikentrins和除草吲哚已经报道了几种合成方法,它们是在C2和C3位置未取代的吲哚生物碱,带有一个反-1,3-二甲基环戊基单元。本文中,我们描述了更具挑战性的反式trikentrin A作为其天然存在的异构体的首次不对称和立体选择性合成。研究了不同的方法,选择的策略是酶促动力学拆分和((III)介导的环收缩的组合。天然产物和相关中间体的抗增殖活性已经针对人肿瘤细胞系进行了测试,从而导致发现了具有有效抗肿瘤活性的新化合物。