发明人唐晓军,赵玉洁,冯建国. "Method for the Synthesis of (R)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-2-(3,4,5-trimethoxyphenyl)acetic acid" [P]. 中国发明专利, 专利号 CN 117976818 B, 授权公告日 2021-08-25.
发明人刘建华,郑宇鹏,朱建伟. "A Process for Preparing High-Purity (R)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-2-(3,4,5-trimethoxyphenyl)acetic acid" [P]. 中国发明专利, 专利号 CN 108540125 B, 授权公告日 2016-02-17.
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