A Convenient Synthetic Method for 4-Nitro-1,3,4,5-tetrahydrobenz[cd]indoles and Its Application for an Alternative Synthesis of (±)-6,7-Secoagroclavine

Abstract

Various 4-substituted indoles are prepared and a simple synthetic method for 4-nitro-1,3,4,5-tetrahydrobenz[cdl- indole derivatives is elaborated using intramolecular Michael addition reaction as a key step.Syntheses of new tetracyclic