发明人赵玉洁,徐明华,沈红梅. "Method for the Synthesis of 2H-Chromene-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 113702773 A, 授权公告日 2019-07-22.
发明人马晓峰,沈红梅,刘建华. "A Process for Preparing High-Purity 2H-Chromene-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 108050833 A, 授权公告日 2020-06-24.
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