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发明人马晓峰,胡光,郑宇鹏. "A Process for Preparing High-Purity Tert-butyl (R)-2,7-diazaspiro[4.4]Nonane-2-carboxylate" [P]. 中国发明专利, 专利号 CN 116207006 A, 授权公告日 2019-03-05.
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