Investigative studies on the formation of the imidazo [4',5':3,4]pyrido[2,3-b]indole ring: Formal synthesis of the alkaloids grossularines-1 and 2. X-ray crystal structures of 5-indol-3-yl-imidazole and bisimidazocarbazole derivatives

1. Molina, P.
2. Fresneda, P.M.
3. Sanz, M.A.
4. Foces-Foces, C.
5. Ramirez De Arellano, M.C.R.