参考文献

Lukevits, E.; Borisova, L. I.; Gevorgyan, V. N. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1987 , vol. 23, # 1 p. 114 - 116 Khimiya Geterotsiklicheskikh Soedinenii, 1987 , vol. 23, # 1 p. 136 - 137