Scandium-catalyzed preparation of cytotoxic 3-functionalized quinolin-2-ones: Regioselective ring enlargement of isatins or imino isatins

1. Alcaide, B.
2. Almendros, P.
3. Aragoncillo, C.
4. Gómez-Campillos, G.
5. Arnó, M.
6. Domingo, L.R.