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发明人冯建国,马晓峰,何建平. "A Process for Preparing High-Purity tert-Butyl 2,8-diazaspiro[4.5]decane-2-carboxylate hydrochloride" [P]. 中国发明专利, 专利号 CN 115775724 B, 授权公告日 2019-12-21.
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