发明人马晓峰,郭海燕,高志强. "Method for the Synthesis of 3-((2-Hydroxy-3-methoxybenzylidene)amino)-2-methylbenzoic acid" [P]. 中国发明专利, 专利号 CN 113578877 A, 授权公告日 2021-02-10.
发明人王建平,刘建华,沈红梅. "A Process for Preparing High-Purity 3-((2-Hydroxy-3-methoxybenzylidene)amino)-2-methylbenzoic acid" [P]. 中国发明专利, 专利号 CN 113167450 A, 授权公告日 2020-07-03.
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