作者:David L. Sloman、Branko Mitasev、Stephen S. Scully、John A. Beutler、John A. Porco
DOI:10.1002/anie.201007613
日期:2011.3.7
Arylation goes platinum: The synthesis of the ABCD ring fragments of the kibdelones has been achieved through a novel PtIV‐catalyzed arylation of a quinone monoketal followed by photocyclization (see scheme). Biological evaluation in the NCI 60‐cell screen revealed that the kibdelone ABCD ring analogues were about 2000 times less active than kibdelones B and C, suggesting that the tetrahydroxanthone
芳基化转变为铂金:kibdelones的 ABCD 环片段的合成是通过一种新型的 Pt IV催化的醌单缩酮芳基化,然后进行光环化(见方案)实现的。NCI 60 细胞筛选中的生物学评估表明,kibdelone ABCD 环类似物的活性比 kibdelone B 和 C 低约 2000 倍,这表明 kibdelone 的四氢氧杂蒽酮结构对细胞毒性至关重要。