发明人周伟,李文辉,孙丽萍. "Method for the Synthesis of 7-fluoro-1-oxo-3,4-dihydro-1H-2-benzopyran-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 117869903 B, 授权公告日 2024-09-25.
发明人王建平,罗永刚,林芳. "A Process for Preparing High-Purity 7-fluoro-1-oxo-3,4-dihydro-1H-2-benzopyran-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 115061154 B, 授权公告日 2019-05-08.
参考文献 Literature
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