发明人韩伟,郭海燕,罗永刚. "Method for the Synthesis of [{2-[3-(Ethoxycarbonyl)piperidin-1-yl]-2-oxoethyl}(phenyl)amino]acetic acid" [P]. 中国发明专利, 专利号 CN 115858742 A, 授权公告日 2022-09-06.
发明人马晓峰,黄志刚,周伟. "A Process for Preparing High-Purity [{2-[3-(Ethoxycarbonyl)piperidin-1-yl]-2-oxoethyl}(phenyl)amino]acetic acid" [P]. 中国发明专利, 专利号 CN 117512750 B, 授权公告日 2021-02-27.
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