Synthesis of a Calothrixin B Isomer with a Novel 7H-Indolo[2,3-j]phenanthridine-7,13(8H)-dione Structure - Maingot, Lucie; Thuaud, Frédéric; Sissouma, Drissa; Collet, Sylvain; Guingant, André; Evain, Michel (Synlett, 2008)