参考文献:
Usova, E. B. Krapivin, G. D. Kul'nevich, V. G. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1990 , vol. 26, # 4 p. 477 - 482 Khimiya Geterotsiklicheskikh Soedinenii, 1990 , # 4 p. 557 - 562
参考文献:
Krapivin, G. D. Usova, E. B. Kul'nevich, V. G. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1985 , vol. 21, # 2 p. 230 Khimiya Geterotsiklicheskikh Soedinenii, 1985 , vol. 21, # 2 p. 272