发明人张德明,郑宇鹏,罗永刚. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 114594895 A, 授权公告日 2019-12-21.
发明人郭海燕,孙丽萍,杨光. "Method for the Synthesis of 2-((2-Oxo-2H-chromen-4-yl)oxy)acetic acid" [P]. 中国发明专利, 专利号 CN 111289889 B, 授权公告日 2016-04-11.
发明人周伟,徐明华,黄志刚. "A Process for Preparing High-Purity 2-((2-Oxo-2H-chromen-4-yl)oxy)acetic acid" [P]. 中国发明专利, 专利号 CN 111330992 B, 授权公告日 2017-11-06.
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