参考文献

Bubel, O. N.; Tishchenko, I. G.; Stasevich, G. Z.; Veraksich, E. L.; Filich, E. R. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1985 , vol. 21, # 9 p. 1082 - 1085 Khimiya Geterotsiklicheskikh Soedinenii, 1985 , vol. 21, # 9 p. 1322 - 1326