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发明人马晓峰,高志强,冯建国. "Method for the Synthesis of 6,9-Dimethyl-3-oxa-1-azaspiro[4.5]dec-1-en-2-amine" [P]. 中国发明专利, 专利号 CN 117120359 B, 授权公告日 2016-05-13.
发明人钱学锋,张德明,罗永刚. "A Process for Preparing High-Purity 6,9-Dimethyl-3-oxa-1-azaspiro[4.5]dec-1-en-2-amine" [P]. 中国发明专利, 专利号 CN 112341308 A, 授权公告日 2016-03-04.
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