1. See e.g., Pindur, U.; Fischer, G. Curr. Med. Chem. 1996, 3, 379 and references therein.
2. See e.g., Zunino, F.; Animati, F.; Capranico G. Current Pharmaceutical Design 1995, 1, 83 and references therein.
3. See e.g., (a) Lee, M.; Rhodes, A.L.; Wyatt, M.; Forrow, S.; Hartley, J.A. Anticancer Drug Design 1993, 8, 173,
4. (b) Wyatt, M.D.; Garbiras, B.J.; Haskell, M.K.; Lee, M.; Souhami, R.L.; Hartley, J.A., Anticancer Drug Design 1994, 9, 511,
5. (c) Wyatt, M.D.; Lee, M.; Hartley, J. A. Anticancer Drug Design 1997, 12, 49.