Applications of the intramolecular diels-alder reactions of heterodienes to the syntheses of indole alkaloids
作者:Stephen F. Martin、Brigitte Benage、Sidney A. Williamson、Stephen P. Brown
DOI:10.1016/s0040-4020(01)90579-4
日期:1986.1
being the pivotal intermediate for the preparation of the secondary amine 24 (13 steps and 18% overall yield from propargyl alcohol), a known precursor of tetrahydroalstonine (4) and other heteroyohimboid bases, as well as for the syntheses of the α,β-unsaturated 2-piperidones 27 and 29, model compounds that have been designed to test the feasibility of a new strategy for the synthesis of the corynantheioid