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参考文献
Tikhomirov, D. A.; Eremeev, A. V. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1987 , vol. 23, # 1 p. 30 - 34 Khimiya Geterotsiklicheskikh Soedinenii, 1987 , vol. 23, # 1 p. 39 - 43
Tikhomirov, D. A.; Eremeev, A. V. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1987 , vol. 23, # 1 p. 30 - 34 Khimiya Geterotsiklicheskikh Soedinenii, 1987 , vol. 23, # 1 p. 39 - 43