base and a member of the sarpagine/ajmaline class of alkanoids) was completed in a stereocontrolled fashion. The serial synthesis employed three intramolecular reactions, the Pictet-Spengler cyclization, the Dieckmann condensation and the ortho ester Claisen rearrangement all of which occurred with high stereoselectivity
吲哚生物碱 (±)-suaveoline (1)(一种与大环素相关的碱基和 sarpagine/ajmaline 类
生物碱的成员)的首次全合成以立体控制的方式完成。系列合成采用三个分子内反应,Pictet-Spengler 环化、Dieckmann 缩合和原酸酯 Claisen 重排,所有这些反应都具有高立体选择性