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发明人王建平,韩伟,郑宇鹏. "Method for the Synthesis of 8-Benzyl-4-(2-methylpropanoyl)-1-oxa-4,8-diazaspiro[4.5]decane-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 115297118 A, 授权公告日 2015-01-26.
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