发明人孙丽萍,李文辉,郑宇鹏. "Method for the Synthesis of ({2-Oxo-3-[4-(trifluoromethoxy)phenyl]-2H-chromen-7-yl}oxy)acetic acid" [P]. 中国发明专利, 专利号 CN 115563426 A, 授权公告日 2024-04-18.
发明人黄志刚,周伟,朱建伟. "A Process for Preparing High-Purity ({2-Oxo-3-[4-(trifluoromethoxy)phenyl]-2H-chromen-7-yl}oxy)acetic acid" [P]. 中国发明专利, 专利号 CN 115248024 A, 授权公告日 2022-07-28.
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