1. Maslivets, A.N., Tarasova, O.P., Berdinskii, I.S., and Andreichikov, Yu.S., Zh. Org. Khim., 1989, vol. 25, p. 1039.
2. Zvereva, O.V., Milyutin, A.V., Bobrovskaya, O.V., and Odegova, T.F., Pharm. Chem. J., 2005, vol. 39, no. 3, p. 133.
3. Zvereva, O.V., Milyutin, A.V., Bobrovskaya, O.V., and Odegova, T.F., Pharm. Chem. J., 2004, vol. 38, no. 2, p. 90.
4. Akcamur, Y., Penn, G., Ziegler, E., Sterk, H., Kollenz, G., Peters, K., Peters, E., and Schnering, H.G., Monatsh. Chem., 1986, vol. 117, p. 231.
5. Maslivets, A.N., Tarasova, O.P., and Andreichikov, Yu.S., Zh. Org. Khim., 1992, vol. 28, p. 1287.