参考文献

Kizner, T. A.; Mikhaleva, M. A.; Serebryakova, E. S. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1990 , vol. 26, # 6 p. 668 - 670 Khimiya Geterotsiklicheskikh Soedinenii, 1990 , # 6 p. 801 - 803