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发明人王建平,马晓峰,周伟. "A Process for Preparing High-Purity (1R,4R)-2-[(4-Dimethylamino-cyclohexyl)-methyl-amino]-ethanol" [P]. 中国发明专利, 专利号 CN 117015985 B, 授权公告日 2022-09-28.
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