参考文献

Prostakov, N. S.; Varlamov, A. V.; Hussein, A.; Fomichev, A. A.; Ryabova, N. A.; Stashenko, E. E. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1990 , vol. 26, # 4 p. 424 - 430 Khimiya Geterotsiklicheskikh Soedinenii, 1990 , # 4 p. 495 - 501