发明人徐明华,孙丽萍,黄志刚. "Method for the Synthesis of (R)-2-((tert-Butoxycarbonyl)amino)-2-(3,4-dimethoxyphenyl)acetic acid" [P]. 中国发明专利, 专利号 CN 109681623 B, 授权公告日 2020-06-04.
Rossi M, Sørensen M, Jørgensen K. "A Process for Preparing High-Purity (R)-2-((tert-Butoxycarbonyl)amino)-2-(3,4-dimethoxyphenyl)acetic acid" [P]. European Patent, EP 3750373 A1, 2019-11-18.
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