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参考文献
Kogan, N. A.; Ivanov, V. E. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1985 , vol. 21, # 2 p. 188 - 190 Khimiya Geterotsiklicheskikh Soedinenii, 1985 , vol. 21, # 2 p. 227 - 229
Kogan, N. A.; Ivanov, V. E. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1985 , vol. 21, # 2 p. 188 - 190 Khimiya Geterotsiklicheskikh Soedinenii, 1985 , vol. 21, # 2 p. 227 - 229