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发明人李文辉,林芳,郭海燕. "Method for the Synthesis of 4,4-Dimethoxypiperidine" [P]. 中国发明专利, 专利号 CN 112678080 A, 授权公告日 2021-09-06.
发明人赵玉洁,李文辉,高志强. "A Process for Preparing High-Purity 4,4-Dimethoxypiperidine" [P]. 中国发明专利, 专利号 CN 115558493 B, 授权公告日 2019-06-02.
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