发明人郭海燕,朱建伟,李文辉. "Method for the Synthesis of 1-(4-Amino-3-isopropoxyphenyl)-N,N-dimethylpiperidin-4-amine" [P]. 中国发明专利, 专利号 CN 109571867 B, 授权公告日 2016-07-14.
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