发明人李文辉,赵玉洁,陈志强. "Method for the Synthesis of 3-Cyclopentyl-2-({[(9h-fluoren-9-yl)methoxy]carbonyl}amino)propanoic acid" [P]. 中国发明专利, 专利号 CN 112038638 B, 授权公告日 2021-11-10.
发明人黄志刚,刘建华,罗永刚. "A Process for Preparing High-Purity 3-Cyclopentyl-2-({[(9h-fluoren-9-yl)methoxy]carbonyl}amino)propanoic acid" [P]. 中国发明专利, 专利号 CN 113591236 B, 授权公告日 2018-01-02.
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