to have potent protein kinase and topoisomerase I inhibitory activities. Disclosed herein is the photochemical synthesis of the indolocarbazole ring system from N-allenyl-2-iodoanilines. The tandem protocol included visible-light-mediated 5-exo-trig radical cyclization and subsequent radical dimerization, followed by acid-promoted deprotection and intramolecular Mannich cyclization. This strategy showed
吲哚并
咔唑生物碱及其衍
生物被发现具有有效的蛋白激酶和拓扑异构酶 I 抑制活性。本文公开了由N-烯基-
2-碘苯胺光
化学合成
吲哚并
咔唑环系统。串联方案包括可见光介导的 5- exo - trig 自由基环化和随后的自由基二聚化,然后是酸促进的去保护和分子内 Mannich 环化。该策略表现出优异的官能团耐受性,并成功应用于
天然产物噻帕唑 B 和 D 的简明合成。