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发明人李文辉,朱建伟,杨光. "Method for the Synthesis of 1-(2-Bromoethyl)-4-(4-methylpiperidin-1-yl)pyridin-1-ium bromide" [P]. 中国发明专利, 专利号 CN 117855406 A, 授权公告日 2019-08-04.
发明人王建平,黄志刚,高志强. "A Process for Preparing High-Purity 1-(2-Bromoethyl)-4-(4-methylpiperidin-1-yl)pyridin-1-ium bromide" [P]. 中国发明专利, 专利号 CN 109932022 B, 授权公告日 2018-02-03.
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