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参考文献
Voronkov,M.G.; Zelchan,G.I. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1965 , vol. 1, p. 33 - 37 Khimiya Geterotsiklicheskikh Soedinenii, 1965 , vol. 1, p. 51 - 57
Voronkov,M.G.; Zelchan,G.I. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1965 , vol. 1, p. 33 - 37 Khimiya Geterotsiklicheskikh Soedinenii, 1965 , vol. 1, p. 51 - 57