参考文献

Kirpichenok, M. A.; Gorozhankin, S. K.; Grandberg, I. I. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1990 , vol. 26, # 6 p. 693 - 697 Khimiya Geterotsiklicheskikh Soedinenii, 1990 , # 6 p. 830 - 835