Martínez F, Nielsen H, Björnsson E. "Method for the Synthesis of (S)-4-(((S)-1-Carboxy-2-phenylethyl)amino)-3-formamido-4-oxobutanoic acid" [P]. European Patent, EP 3046452 A1, 2017-02-04.
发明人郑宇鹏,张德明,韩伟. "A Process for Preparing High-Purity (S)-4-(((S)-1-Carboxy-2-phenylethyl)amino)-3-formamido-4-oxobutanoic acid" [P]. 中国发明专利, 专利号 CN 116264123 B, 授权公告日 2017-11-22.
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