1. Yoshii, M., Farumashia, 2000, vol. 2, p. 442.
2. Kobayashi, T., Mol. Med., 2001, vol. 2, p. 196.
3. Roth, H.J. and Fenner, H., Struktur-Bioreactivitat-Wirkungsbezogene Eigenschaften, Stuttgart: Deutscher Apotheker, 2000, p. 441.
4. Thyagarajan, B.S. and Glowienka, J.A., Phosphorus, Sulfur, 1988, vol. 59, p. 11.
5. Uanefeld, W. and Schlitzer, M., J. Heterocycl. Chem., 1995, vol. 32, p. 1019.