发明人郭海燕,周伟,胡光. "Method for the Synthesis of 4-(3,5-Dichlorobenzoyl)-8-methyl-1-oxa-4,8-diazaspiro[4.5]decane-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 116908666 A, 授权公告日 2019-07-25.
发明人韩伟,高志强,朱建伟. "A Process for Preparing High-Purity 4-(3,5-Dichlorobenzoyl)-8-methyl-1-oxa-4,8-diazaspiro[4.5]decane-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 112112068 A, 授权公告日 2015-12-03.
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