参考文献
Sadekov, I. D.; Ladatko, A. A.; Sadekova, E. I.; Dorofeenko, G. N.; Minkin, V. I.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1981 , vol. 17, # 3 p. 248 - 251
Khimiya Geterotsiklicheskikh Soedinenii, 1981 , vol. 17, # 3 p. 343 - 346