参考文献

Orlov, V. D.; Desenko, S. M.; Potekhin, K. A.; Struchkov, Yu. T. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1988 , vol. 24, p. 192 - 196 Khimiya Geterotsiklicheskikh Soedinenii, 1988 , vol. 24, # 2 p. 229 - 233