作者:Helmut Haning、Carles Giró-Mañas、Victoria L. Paddock、Christian G. Bochet、Andrew J. P. White、Gerald Bernardinelli、Inderjit Mann、Wolfang Oppolzer、Alan C. Spivey
DOI:10.1039/c0ob00895h
日期:——
syntheses of the Amaryllidaceae alkaloid clivonine (1) are described. Both employ previously reported 7-arylhydrindane 6 as an intermediate but differ in the method employed for subsequent introduction of what becomes the ring-B lactonecarbonyl carbon (C7). The synthesis featuring a Bischler–Napieralski reaction for this transformation constitutes the first asymmetric synthesis of natural (+)-clivonine.
描述了金缕梅科生物碱clivonine(1)的两种合成方法。两者均使用先前报道的7-芳基氢化茚6作为中间体,但在随后引入成为环B内酯羰基碳(C7)的方法上有所不同。这种转化以Bischler-Napieralski反应为特征的合成构成了天然(+)-clivonine的第一个不对称合成。还报道了化合物(±)-13,(±)-16,(-)- 20和(±)-28的晶体结构。