发明人马晓峰,胡光,罗永刚. "Method for the Synthesis of Tert-butyl 2-hydroxy-9-oxo-6-azaspiro[3.5]Nonane-6-carboxylate" [P]. 中国发明专利, 专利号 CN 111163537 B, 授权公告日 2015-05-09.
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