1. Il’ina, I.G. and Mikhalev, O.V., Russ. J. Org. Chem., 2011, vol. 47. no. 10, p. 1515.
2. Grandberg, K.I., Kuz’mina, L.G., Aleksandrov, G.G., et al., Chemistry of Heterocyclic Compounds, 1999, vol. 35, no. 8, p. 900.
3. Mikhalev, O.V., Fedyanin, I.V., Tarasevich, B.N., et al., Vestn. Mosk. un-ta. Ser. 2. Khim., 2007, vol. 48. no. 2, p.118.
4. Il’ina, I.G., Tarasevich, B.N., Fedyanin, I.V., and Mikhalev, O.V., in Nitrogen-Containing Heterocycles, Kartsev, V.G., Ed., Moscow: ICSPF, 2006, vol. 1, p. 355.
5. Il’ina, I.G., Mikhalev, O.V., Butin, K.P., and Ashkinadze, L.D., Russ. J. Org. Chem., 2003, vol. 39, no. 1, p. 99.