参考文献
Bochkareva, T. P.; Passet, B. V.; Popov, K. R.; Platonova, N. V.; Koval'chuk, T. I.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1987 , vol. 23, # 10 p. 1084 - 1089
Khimiya Geterotsiklicheskikh Soedinenii, 1987 , # 10 p. 1353 - 1359
