参考文献

Prostakov, N. S.; Radzhan, P. K.; Soldatenkov, A. T. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1980 , vol. 16, # 11 p. 1153 - 1156 Khimiya Geterotsiklicheskikh Soedinenii, 1980 , vol. 16, # 11 p. 1516 - 1519