发明人韩伟,沈红梅,高志强. "Method for the Synthesis of 2-(4-(Ethylamino)-2-hydroxy-5-methylbenzoyl)benzoic acid" [P]. 中国发明专利, 专利号 CN 113781149 B, 授权公告日 2018-05-26.
发明人何建平,王建平,杨光. "A Process for Preparing High-Purity 2-(4-(Ethylamino)-2-hydroxy-5-methylbenzoyl)benzoic acid" [P]. 中国发明专利, 专利号 CN 117428343 B, 授权公告日 2018-10-16.
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