Design and synthesis of a system for enediyne formation by anthraquinone reductive activation
作者:Andrew G. Myers、Peter S. Dragovich
DOI:10.1021/ja00040a057
日期:1992.7
In vitro experiments conducted with the natural antitumor agents calichemicin, esperamicin, and dynemicin support, as a common mechanistic feature, the cyclization of a carbocyclic (2)-enediyne to form a highly reactive 1,4-dehydrobenzene in- termediate (Bergman reaction).'s2 In each case, a chemical activation step leads to a structural change within the antibiotic that accelerates Bergman cyclization
使用天然抗肿瘤剂加利化学星、esperamicin 和 dynemicin 支持进行的体外实验,作为一个共同的机制特征,碳环 (2)-烯二炔环化形成高反应性的 1,4-脱氢苯中间体(伯格曼反应) .'s2 在每种情况下,化学活化步骤都会导致抗生素内的结构变化,从而加速伯格曼环化。在通过还原活化形成 1,4-脱氢苯中间体的另一种策略中,我们合成了蒽醌-环二乙炔共轭物