发明人王建平,徐明华,冯建国. "Method for the Synthesis of Ketoprofen Impurity 58" [P]. 中国发明专利, 专利号 CN 117688051 B, 授权公告日 2020-03-15.
Kumar R, Lee S K, Patel M V. "A Process for Preparing High-Purity Ketoprofen Impurity 58" [P]. US Patent, US 9054061 B2, 2019-07-22.
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