参考文献

Burmistrov, S. I.; Sannikova, V. M. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1981 , vol. 17, # 6 p. 606 - 609 Khimiya Geterotsiklicheskikh Soedinenii, 1981 , # 6 p. 816 - 819