发明人刘建华,徐明华,陈志强. "Method for the Synthesis of 1-(3,5-Difluorophenyl)-3-oxocyclobutane-1-carboxylic acid" [P]. 中国发明专利, 专利号 CN 117130347 A, 授权公告日 2019-01-06.
Johansson L, Björnsson E, Mueller T C. "A Process for Preparing High-Purity 1-(3,5-Difluorophenyl)-3-oxocyclobutane-1-carboxylic acid" [P]. European Patent, EP 3499296 A1, 2019-04-27.
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