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发明人何建平,罗永刚,刘建华. "Method for the Synthesis of 8-Methyl-3-(2-(4-methylpiperidin-1-yl)-2-oxoethyl)-1,3-diazaspiro[4.5]decane-2,4-dione" [P]. 中国发明专利, 专利号 CN 111285811 B, 授权公告日 2017-01-05.
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