发明人孙丽萍,徐明华,马晓峰. "Method for the Synthesis of 8-Methyl-4-(2,4,6-trimethylbenzoyl)-1-oxa-4,8-diazaspiro[4.5]decane-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 109086879 A, 授权公告日 2019-03-12.
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