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发明人林芳,沈红梅,胡光. "A Process for Preparing High-Purity (S)-2-Amino-N-isopropyl-3-methyl-N-(1-methyl-piperidin-4-yl)-butyramide" [P]. 中国发明专利, 专利号 CN 114796734 B, 授权公告日 2019-10-05.
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