作者:Artem Shvartsbart、Amos B. Smith
DOI:10.1021/ja411539w
日期:2014.1.22
synthesis of the architecturally complex Daphniphyllum alkaloid (-)-calyciphylline N has been achieved. Highlights of the synthesis include a Et2AlCl-promoted, highly stereoselective, susbtrate-controlled intramolecular Diels-Alder reaction, a transannular enolate alkylation, an effective Stille carbonylation/Nazarov cyclization sequence, and a high-risk diastereoselective hydrogenation of a fully substituted
结构复杂的水蚤生物碱 (-)-calyciphylline N 的全合成已经实现。合成的亮点包括 Et2AlCl 促进的、高度立体选择性的、底物控制的分子内 Diels-Alder 反应、跨环烯醇烷基化、有效的 Stille 羰基化/Nazarov 环化序列以及完全取代的共轭二烯酯的高风险非对映选择性氢化.