参考文献
Prostakov, N. S.; Shalimov, V. P.; Montenegro Cordova Galo, B.; Leonova, N. I.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1983 , vol. 19, # 11 p. 1213 - 1216
Khimiya Geterotsiklicheskikh Soedinenii, 1983 , # 11 p. 1527 - 1530
