发明人张德明,马晓峰,唐晓军. "Method for the Synthesis of Demethyl Naproxen Sulfate" [P]. 中国发明专利, 专利号 CN 112630090 B, 授权公告日 2015-05-27.
发明人林芳,刘建华,郑宇鹏. "A Process for Preparing High-Purity Demethyl Naproxen Sulfate" [P]. 中国发明专利, 专利号 CN 110237888 B, 授权公告日 2021-07-03.
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