发明人孙丽萍,赵玉洁,沈红梅. "Method for the Synthesis of 7-Hydroxycoumarin-4-acetic acid methyl ester, 97%" [P]. 中国发明专利, 专利号 CN 111812273 B, 授权公告日 2025-08-09.
发明人徐明华,马晓峰,朱建伟. "A Process for Preparing High-Purity 7-Hydroxycoumarin-4-acetic acid methyl ester, 97%" [P]. 中国发明专利, 专利号 CN 114573072 A, 授权公告日 2019-03-28.
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