参考文献

Potapov, V. M.; Dem'yanovich, V. M.; Skvortsova, T. V. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1987 , vol. 23, # 9 p. 990 - 992 Khimiya Geterotsiklicheskikh Soedinenii, 1987 , # 9 p. 1238 - 1240