发明人郑宇鹏,钱学锋,郭海燕. "Method for the Synthesis of 8-tert-Butyl-4-(4-fluorobenzoyl)-1-oxa-4-azaspiro[4.5]decane-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 114020410 A, 授权公告日 2022-01-02.
发明人唐晓军,王建平,冯建国. "A Process for Preparing High-Purity 8-tert-Butyl-4-(4-fluorobenzoyl)-1-oxa-4-azaspiro[4.5]decane-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 114634098 B, 授权公告日 2022-09-14.
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