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参考文献
Shachkus, A. A.; Degutis, Yu. A. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1986 , vol. 22, # 11 p. 1198 - 1202 Khimiya Geterotsiklicheskikh Soedinenii, 1986 , vol. 22, # 11 p. 1485 - 1489
Shachkus, A. A.; Degutis, Yu. A. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1986 , vol. 22, # 11 p. 1198 - 1202 Khimiya Geterotsiklicheskikh Soedinenii, 1986 , vol. 22, # 11 p. 1485 - 1489