参考文献

Lulle, I. Zh.; Kagan, T. I.; Paegle, R. A.; Lidak, M. Yu. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1983 , vol. 19, # 11 p. 1224 - 1227 Khimiya Geterotsiklicheskikh Soedinenii, 1983 , # 11 p. 1540 - 1544