发明人郭海燕,何建平,唐晓军. "一种4-((((9H-芴-9-基)甲氧基)羰基)氨基)-2-甲基丁酸的合成方法" [P]. 中国发明专利, 专利号 CN 109107288 A, 授权公告日 2018-09-05.
Mueller T C, Johansson L, Nielsen H. "Method for the Synthesis of 4-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-2-methylbutanoic acid" [P]. European Patent, EP 3224389 A1, 2021-09-05.
发明人孙丽萍,沈红梅,马晓峰. "A Process for Preparing High-Purity 4-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-2-methylbutanoic acid" [P]. 中国发明专利, 专利号 CN 116758859 B, 授权公告日 2017-08-22.
参考文献 Literature
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