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发明人刘建华,钱学锋,郭海燕. "Method for the Synthesis of 4-[3,5-Bis(trifluoromethyl)benzoyl]-8-propyl-1-oxa-4,8-diazaspiro[4.5]decane-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 108388508 B, 授权公告日 2022-03-22.
发明人唐晓军,何建平,赵玉洁. "A Process for Preparing High-Purity 4-[3,5-Bis(trifluoromethyl)benzoyl]-8-propyl-1-oxa-4,8-diazaspiro[4.5]decane-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 112288172 A, 授权公告日 2021-05-09.
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