参考文献:
Gordeev, E. N. Buyanov, V. N. Zhigachev, V. E. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1992 , vol. 28, # 1 p. 40 - 42 Khimiya Geterotsiklicheskikh Soedinenii, 1992 , # 1 p. 46 - 48
参考文献:
Gordeev, E. N. Buyanov, V. N. Zhigachev, V. E. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1992 , vol. 28, # 1 p. 40 - 42 Khimiya Geterotsiklicheskikh Soedinenii, 1992 , # 1 p. 46 - 48