参考文献

Kirpichenok, M. A.; Gorozhankin, S. K.; Grandberg, I. I. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1989 , vol. 25, # 7 p. 737 - 745 Khimiya Geterotsiklicheskikh Soedinenii, 1989 , # 7 p. 888 - 897