参考文献
Aleksandrov, B. B.; Glushkov, B. A.; Glushkova, E. N.; Garbunov, A. A.; Shklyaev, V. S.; Shklyaev, Yu. V.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1994 , vol. 30, # 4 p. 449 - 452
Khimiya Geterotsiklicheskikh Soedinenii, 1994 , # 4 p. 511 - 514
