发明人李文辉,沈红梅,韩伟. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 111398960 A, 授权公告日 2024-09-28.
发明人王建平,陈志强,冯建国. "Method for the Synthesis of [(6-Chloro-3,4-dimethyl-2-oxo-2H-chromen-7-yl)oxy]acetic acid" [P]. 中国发明专利, 专利号 CN 113335402 B, 授权公告日 2017-05-12.
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