参考文献

Guttsait, A. V.; Belyakov, S. V.; Mishnev, A. F.; Bleidelis, Ya. Ya.; Gudrinietse, E. Yu. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1987 , vol. 23, # 9 p. 986 - 989 Khimiya Geterotsiklicheskikh Soedinenii, 1987 , # 9 p. 1233 - 1237