作者:Yang Yang、Christopher W. Haskins、Wandi Zhang、Pui Leng Low、Mingji Dai
DOI:10.1002/anie.201400416
日期:2014.4.7
concise total syntheses of two lycopodium alkaloids, lyconadins A and C have been developed. The synthesis of lyconadin A, having potent neurotrophic activity, features an efficient one‐pot ketal removal and formal aza‐[4+2] cyclization to form the cagelike core structure. A tandem ketal removal/Mannich reaction was developed to build the tricyclic structure of lyconadin C. Both lyconadins A and C
两种石松生物碱(lyconadins A 和 C)的发散且简洁的全合成方法已被开发出来。lyconadin A 的合成具有有效的神经营养活性,具有高效的一锅缩酮去除和正式的氮杂-[4+2]环化形成笼状核心结构的特点。开发了串联缩酮去除/曼尼希反应来构建 lyconadin C 的三环结构。lyconadin A 和 C 都是由关键中间体合成的。