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参考文献
Krasovskij,V.A.; Burmistrov,S.I. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1969 , vol. 5, p. 46 - 48 Khimiya Geterotsiklicheskikh Soedinenii, 1969 , vol. 5, p. 56 - 58
Krasovskij,V.A.; Burmistrov,S.I. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1969 , vol. 5, p. 46 - 48 Khimiya Geterotsiklicheskikh Soedinenii, 1969 , vol. 5, p. 56 - 58