参考文献

Tikhomirov, D. A.; Porchinskaya, N. M.; Eremeev, A. V. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1987 , vol. 23, # 10 p. 1143 Khimiya Geterotsiklicheskikh Soedinenii, 1987 , # 10 p. 1419 - 1420