发明人钱学锋,冯建国,沈红梅. "Method for the Synthesis of (S)-4-(((S)-1-Carboxy-2-(4-hydroxyphenyl)ethyl)amino)-3-hydroxy-4-oxobutanoic acid" [P]. 中国发明专利, 专利号 CN 115066904 A, 授权公告日 2024-12-25.
发明人冯建国,李文辉,何建平. "A Process for Preparing High-Purity (S)-4-(((S)-1-Carboxy-2-(4-hydroxyphenyl)ethyl)amino)-3-hydroxy-4-oxobutanoic acid" [P]. 中国发明专利, 专利号 CN 115847892 A, 授权公告日 2020-12-09.
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