polycyclic indoline-annulated normal to medium-size rings through dearomatization of indole via a tandem 1,2-acyloxy migration/intramolecular [3 + 2] cycloaddition process is described. The pentacyclic skeleton of strychnine could be synthesized via this tandem cycloaddition and a further Mannich reaction. This approach would provide a novel strategy to the synthesis of strychons alkaloids.
描述了一种通过
串联的1,2-酰
氧基迁移/分子内[3 + 2]环加成过程使
吲哚脱芳香化来构建各种多取代的多环
吲哚啉环化的中型至中型环的有效方法。
士的宁的五环骨架可以通过这种
串联环加成反应和进一步的曼尼希反应合成。这种方法将提供一种新的策略来合成拟
苯丙酸杆菌
生物碱。