参考文献

Shner, V.F.; Sladkova, T.N.; Turchin, K.F.; Suvorov, N.N. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1989 , vol. 25, # 3 p. 272 - 274 Khimiya Geterotsiklicheskikh Soedinenii, 1989 , # 3 p. 328 - 330