发明人唐晓军,刘建华,陈志强. "Method for the Synthesis of 1-Butyl-2-(4-nitrophenyl)-6-oxopiperidine-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 116295783 A, 授权公告日 2016-10-17.
发明人罗永刚,孙丽萍,郭海燕. "A Process for Preparing High-Purity 1-Butyl-2-(4-nitrophenyl)-6-oxopiperidine-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 116624063 B, 授权公告日 2024-05-18.
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