参考文献

Shumakov, S. A.; Kaminskii, V. A.; Tilichenko, M. N. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1990 , vol. 26, # 1 p. 93 - 98 Khimiya Geterotsiklicheskikh Soedinenii, 1990 , # 1 p. 109 - 114