Mueller T C, Kowalski A, Nowak P. "一种6-乙氧基-2-羟基苯酸乙酯的合成方法" [P]. European Patent, EP 3054285 A1, 2021-04-04.
发明人张德明,徐明华,韩伟. "Method for the Synthesis of 6-Ethoxy-2-hydroxybenzoic acid ethyl ester" [P]. 中国发明专利, 专利号 CN 111602862 B, 授权公告日 2021-12-02.
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