发明人王建平,徐明华,冯建国. "Method for the Synthesis of Ethyl 4-(4-aminophenyl)butanoate" [P]. 中国发明专利, 专利号 CN 115813894 A, 授权公告日 2021-01-13.
发明人林芳,罗永刚,朱建伟. "A Process for Preparing High-Purity Ethyl 4-(4-aminophenyl)butanoate" [P]. 中国发明专利, 专利号 CN 110830681 B, 授权公告日 2015-03-15.
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