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参考文献
Kovalev,B.G. et al. Journal of Organic Chemistry USSR (English Translation), 1967 , vol. 3, # 2 p. 275 - 277 Zhurnal Organicheskoi Khimii, 1967 , vol. 3, # 2 p. 292 - 295
Kovalev,B.G. et al. Journal of Organic Chemistry USSR (English Translation), 1967 , vol. 3, # 2 p. 275 - 277 Zhurnal Organicheskoi Khimii, 1967 , vol. 3, # 2 p. 292 - 295