Total Synthesis of Racemic Benzomalvin E, a Quinazolinone Isolated from <i>Pencilium sp</i>. FN070315 and Exploration to the Direct Synthesis of (<i>E</i>)-Benzomalvin B
作者:Soumya Jyoti Basak、Jyotirmayee Dash
DOI:10.1021/acs.joc.3c02687
日期:2024.3.1
We present the first total synthesis of (±) benzomalvin E, featuring a quinazolino moiety with a 6–6–6–7-fused tetracyclic skeleton containing three nitrogen atoms. The key transformation involves Cu-catalyzed intramolecular C–N arylation of quinazolinone, leading to a sclerotigenin analogue that undergoes nucleophilic addition with benzaldehyde, enabling the synthesis of (±) benzomalvin E in six linear