作者:Jean-Pierre Hurvois、Richard Malassene、Lourdes Sanchez-Bajo、Loic Toupet、Claude Moinet
DOI:10.1055/s-2002-33515
日期:——
The synthesis of α-aminonitrile 4, a potent precursor to the martinellines is described. The preparation of the pyrroloquinoline core was realized in one step (90% yield) using a formal [4Ï+2Ï] cyclocondensation involving the cationic aza-diene 6 and the 1-(benzyloxy)carbonyl-2-pyrroline 5 as dienophile. The stereochemical outcome of the cyanation procedure performed on the tricyclic core thus obtained is discussed.
描述了 α-氨基腈 4 的合成,它是马丁内林的有效前体。使用阳离子氮杂二烯 6 和作为亲二烯体的 1-(苄氧基)羰基-2-吡咯啉 5 进行正式的 [4α+2β] 环缩合,一步实现了吡咯喹啉核的制备(产率 90%)。讨论了对由此获得的三环核进行氰化过程的立体化学结果。