参考文献

Parfenov, E. A.; Smirnov, L. D. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1992 , vol. 28, # 3 p. 274 - 278 Khimiya Geterotsiklicheskikh Soedinenii, 1992 , # 3 p. 329 - 334