参考文献

Kapitonova, E.V.; Fedotova, O.V.; Chushkov, A.A.; Sorokin, N.N.; Kharchenko, V.G. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1994 , vol. 30, # 7 p. 773 - 776 Khimiya Geterotsiklicheskikh Soedinenii, 1994 , # 7 p. 898 - 901