An Approach to the Tricyclic Core of Madangamines Based upon a Biogenetic Scheme
作者:Han Min Tong、Marie-Thérèse Martin、Angèle Chiaroni、Michel Bénéchie、Christian Marazano
DOI:10.1021/ol050740i
日期:2005.6.1
[reaction: see text] A short synthesis of intermediates possessing the tricyclic core of natural madangamines, bioactive alkaloids found in marine sponges, is described. The key reaction entails the condensation of the sodium salt of diethylacetonedicarboxylate with a dihydropyridinium salt derivative. This new approach is modeled on a biogenetic proposal linking madangamines to ircinals, related alkaloids