Annulations of isoquinoline and β-carboline ring systems: synthesis of 8-oxoprotoberberine derivatives
作者:Suren Husinec、Vladimir Savic、Milena Simic、Vele Tesevic、Dragoslav Vidovic
DOI:10.1016/j.tetlet.2011.03.085
日期:2011.5
Annulation processes of isoquinoline and β-carboline compounds have been investigated leading to synthetic routes for the preparation of 8-oxoprotoberberine derivatives. The key steps combined a diene formation/Diels–Alder cycloaddition reaction to afford the targeted polycyclic skeletons. Further oxidative transformations of the cycloadducts produced the 8-oxoprotoberberine type products. The alkaloids
已经研究了异喹啉和β-咔啉化合物的环化过程,从而为制备8-氧代小ber碱衍生物提供了合成途径。关键步骤结合了二烯形成/ Diels-Alder环加成反应以提供目标多环骨架。环加合物的进一步氧化转化产生了8-氧代小ber碱类产物。此类生物碱是重要的天然产物,具有广泛的生物活性,本文所述的合成方法可证明对制备D环官能化衍生物有用。