Asymmetric Synthesis of Furo-Pyrrolo-Isoquinoline and Furo-Indolizino-Indole Derivatives Via A Diastereoselective N-Acyliminium ion Cyclization

Abstract Asymmetric synthesis of furo-pyrrolo-isoquinoline and furoindolizino-indole derivatives via a diastereoselective N-acyliminium ion cyclization of chiral enamides is described. The requisite chiral enamides were prepared from readily available L-malic acid.