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参考文献
Bespalov, B. P.; Getmanova, E. V. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1981 , vol. 17, # 3 p. 225 - 228 Khimiya Geterotsiklicheskikh Soedinenii, 1981 , vol. 17, # 3 p. 317 - 320
Bespalov, B. P.; Getmanova, E. V. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1981 , vol. 17, # 3 p. 225 - 228 Khimiya Geterotsiklicheskikh Soedinenii, 1981 , vol. 17, # 3 p. 317 - 320