发明人徐明华,朱建伟,唐晓军. "Method for the Synthesis of 8-Methyl-4-(3-methylbenzoyl)-1-oxa-4-azaspiro[4.5]decane-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 110159138 B, 授权公告日 2023-04-08.
发明人冯建国,赵玉洁,何建平. "A Process for Preparing High-Purity 8-Methyl-4-(3-methylbenzoyl)-1-oxa-4-azaspiro[4.5]decane-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 116249909 B, 授权公告日 2018-07-10.
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