参考文献

Dankova, E. F.; Bakulev, V. A.; Kolobov, M. Yu.; Shishkina, V. I.; Yasman, Ya. B.; Lebedev, A. T. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1988 , vol. 24, # 9 p. 1051 - 1055 Khimiya Geterotsiklicheskikh Soedinenii, 1988 , # 9 p. 1269 - 1273