发明人刘建华,杨光,沈红梅. "Method for the Synthesis of Ketoprofen Impurity 80 (Mixture of Diastereomers)" [P]. 中国发明专利, 专利号 CN 109923238 A, 授权公告日 2016-01-20.
发明人林芳,唐晓军,冯建国. "A Process for Preparing High-Purity Ketoprofen Impurity 80 (Mixture of Diastereomers)" [P]. 中国发明专利, 专利号 CN 108568754 B, 授权公告日 2015-02-27.
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