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参考文献
Korostova, S. E.; Shevchenko, S. G.; Sigalov, M. V. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1991 , vol. 27, # 10 p. 1101 - 1104 Khimiya Geterotsiklicheskikh Soedinenii, 1991 , vol. 27, # 10 p. 1371 - 1374
Korostova, S. E.; Shevchenko, S. G.; Sigalov, M. V. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1991 , vol. 27, # 10 p. 1101 - 1104 Khimiya Geterotsiklicheskikh Soedinenii, 1991 , vol. 27, # 10 p. 1371 - 1374