参考文献
Akhvlediani, R. N.; Khazhidze, M. M.; Eraksina, V. N.; Suvorov, N. N.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1988 , vol. 24, # 11 p. 1221 - 1225
Khimiya Geterotsiklicheskikh Soedinenii, 1988 , vol. 24, # 11 p. 1476 - 1480