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参考文献
Syrbu, S. A.; Semeikin, A. S.; Berezin, B. D.; Koifman, O. I. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1989 , vol. 25, # 10 p. 1149 - 1153 Khimiya Geterotsiklicheskikh Soedinenii, 1989 , vol. 25, # 10 p. 1373 - 1377
Syrbu, S. A.; Semeikin, A. S.; Berezin, B. D.; Koifman, O. I. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1989 , vol. 25, # 10 p. 1149 - 1153 Khimiya Geterotsiklicheskikh Soedinenii, 1989 , vol. 25, # 10 p. 1373 - 1377