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参考文献
Yurkovskaya, M. A.; Afanas'ev, A. Z.; Chertkov, V. A.; Bundel', Yu. G. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1988 , vol. 24, # 9 p. 1000 - 1008 Khimiya Geterotsiklicheskikh Soedinenii, 1988 , # 9 p. 1213 - 1221
Yurkovskaya, M. A.; Afanas'ev, A. Z.; Chertkov, V. A.; Bundel', Yu. G. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1988 , vol. 24, # 9 p. 1000 - 1008 Khimiya Geterotsiklicheskikh Soedinenii, 1988 , # 9 p. 1213 - 1221