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参考文献:
Rybin, A. G. Zil berman, E. N. Etlis, I. V. Chervyakova, G. N. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1986 , vol. 22, # 9 p. 19 - 11 Khimiya Geterotsiklicheskikh Soedinenii, 1986 , vol. 22, # 9 p. 1246 - 1247