Convergent total syntheses of the amaryllidaceae alkaloids lycoranine A, lycoranine B and 2-methoxypratosine

Abstract

The title alkaloids, 1, 2, and 3 respectively, have been prepared in a convergent manner by two related routes. The superior one involves C-H functionalization of the relevant 5-methoxyindole at C-7 using Hartwig's protocol and thus forming the correspond