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参考文献
Belostotskii, A. M.; Shapiro, A. B. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1987 , vol. 23, # 6 p. 665 - 669 Khimiya Geterotsiklicheskikh Soedinenii, 1987 , vol. 23, # 6 p. 804 - 809
Belostotskii, A. M.; Shapiro, A. B. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1987 , vol. 23, # 6 p. 665 - 669 Khimiya Geterotsiklicheskikh Soedinenii, 1987 , vol. 23, # 6 p. 804 - 809