参考文献

Gadzhily, R. A.; Fedoseev, V. M.; Nadzhafova, R. A.; Dzhafarov, V. G. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1990 , vol. 26, # 8 p. 874 - 876 Khimiya Geterotsiklicheskikh Soedinenii, 1990 , # 8 p. 1047 - 1049