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参考文献
Belyaev, N. A.; Mokrushin, V. S. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1989 , vol. 25, # 2 p. 165 - 168 Khimiya Geterotsiklicheskikh Soedinenii, 1989 , vol. 25, # 2 p. 206 - 208
Belyaev, N. A.; Mokrushin, V. S. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1989 , vol. 25, # 2 p. 165 - 168 Khimiya Geterotsiklicheskikh Soedinenii, 1989 , vol. 25, # 2 p. 206 - 208