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发明人赵玉洁,陈志强,周伟. "A Process for Preparing High-Purity tert-Butyl 2-oxo-1,7-diazaspiro[4.5]decane-7-carboxylate" [P]. 中国发明专利, 专利号 CN 108480872 B, 授权公告日 2022-03-26.
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