Synthesis, reactions and DNA damaging abilities of 10-membered enediyne-sulfone and related compounds
作者:Ichiro Suzuki、Akira Shigenaga、Atsuo Manabe、Hisao Nemoto、Masayuki Shibuya
DOI:10.1016/s0040-4020(03)00903-7
日期:2003.7
cycloaromatization reactions of 10-membered enediynes containing a sulfone or a sulfoxide moiety are described. These enediynes cycloaromatized smoothly under physiological conditions to generate bioactive α,3-didehydrotoluene biradicals, that showed potent DNA damaging abilities. Further, in the presence of a nucleophile such as amine or sulfide, cycloaromatization did not occur following the radical reaction pathway
描述了包含砜或亚砜部分的10元烯二炔的合成和Myers-Saito型环芳烃化反应。这些烯二炔在生理条件下平稳地芳香环化,生成具有生物活性的α,3-二氢二甲苯基自由基,显示出强大的DNA破坏能力。此外,在亲核试剂如胺或硫化物的存在下,在自由基反应途径之后没有发生环芳构化,而是发生了离子诱导的环芳构化。