参考文献
Lukevits, E.; Ignatovich, L. M.; Iovel', I. G.; Gol'dberg, Yu. Sh.; Shimanskaya, M. V.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1987 , vol. 23, # 1 p. 15 - 17
Khimiya Geterotsiklicheskikh Soedinenii, 1987 , vol. 23, # 1 p. 22 - 24