参考文献:
Mikhaleva, M. A. Lazareva, V. T. Grebenkin, M.F. Savel'ev, V. A. Mamaev, V. P. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1982 , vol. 18, # 11 p. 1201 - 1208 Khimiya Geterotsiklicheskikh Soedinenii, 1982 , vol. 18, # 11 p. 1545 - 1552