发明人赵玉洁,郭海燕,林芳. "Method for the Synthesis of 1-(3,4-Dimethoxybenzyl)piperidine-4-carboxylic acid" [P]. 中国发明专利, 专利号 CN 114995094 A, 授权公告日 2015-05-16.
发明人张德明,刘建华,朱建伟. "A Process for Preparing High-Purity 1-(3,4-Dimethoxybenzyl)piperidine-4-carboxylic acid" [P]. 中国发明专利, 专利号 CN 109335176 B, 授权公告日 2015-06-14.
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