发明人徐明华,朱建伟,李文辉. "Method for the Synthesis of 1-{[(9H-fluoren-9-yl)methoxy]carbonyl}-4-hydroxypiperidine-4-carboxylic acid" [P]. 中国发明专利, 专利号 CN 114397834 A, 授权公告日 2021-05-28.
发明人胡光,周伟,马晓峰. "A Process for Preparing High-Purity 1-{[(9H-fluoren-9-yl)methoxy]carbonyl}-4-hydroxypiperidine-4-carboxylic acid" [P]. 中国发明专利, 专利号 CN 109294618 B, 授权公告日 2016-04-02.
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