Berkelic Acid: Straightforward Analogue Synthesis and Studies of Activity Against Selected Cancer Cell Lines
作者:Tamara Arto、Inés Sáenz de Santa-María、María-Dolores Chiara、Francisco J. Fañanás、Félix Rodríguez
DOI:10.1002/ejoc.201601194
日期:2016.12
(–)-Berkelic acid is an architecturally unique secondary metabolite isolated from an extremophilic Penicillium species. In this paper, we describe a very simple protocol to construct the central core of this natural product. Using this strategy, not only (–)-berkelic acid, but also a small library of analogues has been accessed. The key point of our protocol is a remarkable silver-catalysed cascade
(–)-Berkelic acid 是一种从嗜极青霉属物种中分离出的结构独特的次级代谢物。在本文中,我们描述了一个非常简单的协议来构建这种天然产品的中心核心。使用这种策略,不仅 (-)-berkelic 酸,而且还访问了一个小型的类似物库。我们协议的关键点是一个非凡的银催化级联反应,它允许在一个步骤中组装天然产物的核心,并从两个简单的起始材料,一个 4-戊炔醇衍生物和一个邻炔基水杨醛。评估了我们合成的 (-)-berkelic 酸和一些类似物对两种癌细胞系 OVCAR-3 和 SSCC38 的细胞毒性。