发明人徐明华,张德明,高志强. "Method for the Synthesis of 5-Methoxy-2,3-dihydrobenzofuran-6-carboxylic acid" [P]. 中国发明专利, 专利号 CN 115232538 B, 授权公告日 2018-12-18.
发明人周伟,徐明华,何建平. "A Process for Preparing High-Purity 5-Methoxy-2,3-dihydrobenzofuran-6-carboxylic acid" [P]. 中国发明专利, 专利号 CN 116563763 B, 授权公告日 2019-03-17.
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