发明人张德明,陈志强,钱学锋. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 114100130 A, 授权公告日 2020-10-15.
发明人林芳,沈红梅,赵玉洁. "Method for the Synthesis of 4-(2-Methoxybenzoyl)-8-methyl-1-oxa-4-azaspiro[4.5]decane-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 108494452 A, 授权公告日 2018-05-24.
发明人高志强,钱学锋,胡光. "A Process for Preparing High-Purity 4-(2-Methoxybenzoyl)-8-methyl-1-oxa-4-azaspiro[4.5]decane-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 115587641 B, 授权公告日 2016-07-01.
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