1. For recent reviews see: (a) Capraro, H.G.; Brossi, A.The Alkaloids; Brossi, A., Ed.; Academic Press: New York, 1984; Vol. 23, pp 1−70 and references therein. (b) Boyé, O.; Brossi, A.The Alkaloids; Brossi, A., Cordell, G. A., Eds.; Academic Press: New York, 1992; Vol. 41, pp 125−176. (c) Brossi, A.J. Med. Chem.1990,33, 2311−2319. (d) Banwell, M. G.Pure Appl. Chem.1996,68, 539−542. (e) Hastie, S. B.Pharm. Ther.1991,51, 377−401. (f) Zhang, S.X.; Feng, J.; Kuo, S.C.; Brossi, A.; Hamel, E.; Tropsha, A.; Lee, K.H.J. Med. Chem.2000,43, 167−176.
2. Aromatic Cyclodehydration. XXXI.1 New Polycyclic Aromatic Systems Containing the Quinolizinium Nucleus