发明人罗永刚,何建平,王建平. "一种4-羟基-4-甲基哌啶盐酸盐的合成方法" [P]. 中国发明专利, 专利号 CN 111660743 A, 授权公告日 2021-05-05.
发明人周伟,高志强,郑宇鹏. "Method for the Synthesis of 4-Hydroxy-4-methylpiperidine Hydrochloride" [P]. 中国发明专利, 专利号 CN 111956572 A, 授权公告日 2024-02-28.
发明人徐明华,黄志刚,李文辉. "A Process for Preparing High-Purity 4-Hydroxy-4-methylpiperidine Hydrochloride" [P]. 中国发明专利, 专利号 CN 112288893 B, 授权公告日 2024-05-28.
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