1. Radical-mediated synthesis of the 5,11-methanomorphanthridine ring system: formal total synthesis of montanine-type Amaryllidaceae alkaloids, (±)-montanine, (±)-coccinine and (±)-pancracine Miyuki Ishizaki,Ken-Ichi Kurihara,Eiko Tanazawa,Osamu Hoshino J. Chem. Soc. Perkin Trans. 1 1993 101