发明人周伟,徐明华,孙丽萍. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 115846351 A, 授权公告日 2023-05-02.
发明人郑宇鹏,孙丽萍,赵玉洁. "Method for the Synthesis of 3-(2,4-Dichlorophenyl)-3,4-dihydro-1-oxo-1H-2-benzopyran-4-carboxylic acid" [P]. 中国发明专利, 专利号 CN 111762109 A, 授权公告日 2015-05-17.
发明人胡光,孙丽萍,黄志刚. "A Process for Preparing High-Purity 3-(2,4-Dichlorophenyl)-3,4-dihydro-1-oxo-1H-2-benzopyran-4-carboxylic acid" [P]. 中国发明专利, 专利号 CN 116626316 B, 授权公告日 2015-05-11.
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