参考文献:
Rusinov, V. L. Dragunova, T. V. Zyryanov, V. A. Aleksandrov, G. G. Klyuev, N. A. Chupakhin, O. N. Chemistry of Heterocyclic Compounds (New York, NY, United States), 198 , vol. , # p. 55 - 59 Khimiya Geterotsiklicheskikh Soedinenii, 198 , vol. , # p. 557 - 561