参考文献

Prostakov, N. S.; Kruglyak, E. V.; Shalimov, V. P.; Sergeeva, N. D.; Rubio, Fabio E. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1991 , vol. 27, # 1 p. 67 - 70 Khimiya Geterotsiklicheskikh Soedinenii, 1991 , # 1 p. 81 - 85