参考文献

Sedavkina, V. A.; Lizak, I. V.; Sorokin, N. N. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1987 , vol. 23, # 10 p. 1129 - 1132 Khimiya Geterotsiklicheskikh Soedinenii, 1987 , # 10 p. 1405 - 1408