参考文献
Malova, O. V.; Vishnyakova, T. P.; Golubeva, I. A.; Kelarev, V. I.; Lunin, A. F.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1984 , vol. 20, # 12 p. 1384 - 1388
Khimiya Geterotsiklicheskikh Soedinenii, 1984 , # 12 p. 1678 - 1682
