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参考文献
Kretov,A.E. et al. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1973 , vol. 9, p. 595 - 597 Khimiya Geterotsiklicheskikh Soedinenii, 1973 , vol. 9, p. 644 - 646
Kretov,A.E. et al. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1973 , vol. 9, p. 595 - 597 Khimiya Geterotsiklicheskikh Soedinenii, 1973 , vol. 9, p. 644 - 646