Synthesis of azepino[4,5- b ]indoles and benzo[ f ][1,5]diazecine-2,8(1 H ,3 H )diones: promising anti-cancer activity toward cervical and brain cancer

A regio- and stereoselective route to azepino[4,5- b ]indoles is reported, with unprecedented formation of tetrahydrobenzo[ f ][1,5]diazecine-2,8(1 H ,3 H )diones. The diazecine compounds show anti-cancer activity against HeLa and U87MG cell lines.