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发明人郭海燕,胡光,徐明华. "A Process for Preparing High-Purity {4-[((S)-2-Amino-propionyl)-methyl-amino]-cyclohexyl}-carbamic acid benzyl ester" [P]. 中国发明专利, 专利号 CN 109913637 A, 授权公告日 2017-06-23.
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