发明人沈红梅,张德明,王建平. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 116198348 A, 授权公告日 2019-03-03.
发明人何建平,韩伟,王建平. "Method for the Synthesis of 8-Methyl-4-(3,4,5-trimethoxybenzoyl)-1-oxa-4-azaspiro[4.5]decane-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 109498512 B, 授权公告日 2019-04-06.
发明人唐晓军,罗永刚,马晓峰. "A Process for Preparing High-Purity 8-Methyl-4-(3,4,5-trimethoxybenzoyl)-1-oxa-4-azaspiro[4.5]decane-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 112730398 A, 授权公告日 2024-01-02.
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