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发明人林芳,李文辉,孙丽萍. "Method for the Synthesis of (3E)-3-[(2-Fluorophenyl)methylidene]-3,4-dihydro-2H-1-benzopyran-4-ol" [P]. 中国发明专利, 专利号 CN 116634980 A, 授权公告日 2016-11-05.
发明人沈红梅,郑宇鹏,赵玉洁. "A Process for Preparing High-Purity (3E)-3-[(2-Fluorophenyl)methylidene]-3,4-dihydro-2H-1-benzopyran-4-ol" [P]. 中国发明专利, 专利号 CN 112215824 A, 授权公告日 2023-02-07.
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