参考文献

Kuz'menko, V. V.; Komissarov, V. N.; Simonov, A. M. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1980 , vol. 16, # 6 p. 634 - 637 Khimiya Geterotsiklicheskikh Soedinenii, 1980 , # 6 p. 814 - 817