参考文献:
Pina, M. del K. Budylin, V. A. Rodriges, M. Terent ev, P. B. Bundel , Yu. G. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1989 , vol. 25, # 2 p. 12 - 16 Khimiya Geterotsiklicheskikh Soedinenii, 1989 , vol. 25, # 2 p. 18 - 18