参考文献

Orlov, V. D.; Desenko, S. M.; Kolos, N. N. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1984 , vol. 20, # 1 p. 106 - 111 Khimiya Geterotsiklicheskikh Soedinenii, 1984 , vol. 20, p. 126 - 131