发明人黄志刚,唐晓军,罗永刚. "Method for the Synthesis of 4-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)picolinic acid" [P]. 中国发明专利, 专利号 CN 112107000 A, 授权公告日 2021-09-16.
发明人林芳,张德明,钱学锋. "A Process for Preparing High-Purity 4-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)picolinic acid" [P]. 中国发明专利, 专利号 CN 116176748 B, 授权公告日 2018-07-20.
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