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参考文献
Oparin, D. A.; Kuznetsova, A. S. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1991 , vol. 27, # 2 p. 139 - 141 Khimiya Geterotsiklicheskikh Soedinenii, 1991 , # 2 p. 172 - 174
Oparin, D. A.; Kuznetsova, A. S. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1991 , vol. 27, # 2 p. 139 - 141 Khimiya Geterotsiklicheskikh Soedinenii, 1991 , # 2 p. 172 - 174