参考文献:
Leitis, L. Ya. Skolmeistere, R. A. Golender, L. O. Yansone, D. P. Meksh, P. A. Shimanskaya, M. V. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1986 , vol. , # 1 p. 63 - 66 Khimiya Geterotsiklicheskikh Soedinenii, 1986 , vol. , # 1 p. 75 - 79