作者:Carlos A. Guerrero、Erik J. Sorensen
DOI:10.1021/ol2020362
日期:2011.10.7
A concise, stereocontrolled synthesis of the citrinadin B core architecture from scalemic, readily available starting materials is disclosed. Highlights include ready access to both cyclic tryptophan tautomer and trans-2,6-disubstituted piperidine fragments, an efficient, stereoretentive mixed Claisen acylation for the coupling of these halves, and further diastereoselective carbonyl addition and oxidative
公开了一种简洁的、立体控制的、从可容易获得的起始材料合成citrinadin B核心结构的方法。亮点包括容易获得环状色氨酸互变异构体和反式-2,6-二取代哌啶片段,用于偶联这些半部分的高效立体保留混合克莱森酰化,以及进一步的非对映选择性羰基加成和氧化重排以组装核心。