Total synthesis of biseokeaniamides A–C and late-stage electrochemically-enabled peptide analogue synthesis
作者:Yutong Lin、Lara R. Malins
DOI:10.1039/d0sc03701j
日期:——
biseokeaniamides A–C is reported employing a robust solid-phase approach to peptide backbone construction followed by coupling of a key thiazole building block. To rapidly access natural product analogues, we have optimized an operationally simple electrochemical oxidative decarboxylation–nucleophilic addition pathway which exploits the reactivity of native C-terminal peptide carboxylates and abrogates the
据报道,第一个完整的细胞毒性蓝细菌肽天然产物水杨酸苯胺酰胺A–C的合成方法是采用稳健的固相方法来构建肽主链,然后偶联关键的噻唑结构单元。为了快速获得天然产物类似物,我们优化了一种操作简单的电化学氧化脱羧亲核加成途径,该途径利用了天然C末端肽羧酸盐的反应性,从而消除了对结构合成的需求。电化学生成的N,O-乙缩醛中间体与富电子芳族化合物和有机金属试剂结合,以伪造修饰的氨基酸和肽。生物活性肽类似物的方便和多样化生产突出了这种后期修饰方法的价值,生物活性肽类似物包括相对于双苯甲酰胺类天然产物显示出增强的细胞毒性的化合物。