发明人郭海燕,林芳,何建平. "Method for the Synthesis of 1,8-Diazaspiro[4.5]decan-2-one" [P]. 中国发明专利, 专利号 CN 109542296 B, 授权公告日 2015-08-11.
发明人赵玉洁,杨光,周伟. "A Process for Preparing High-Purity 1,8-Diazaspiro[4.5]decan-2-one" [P]. 中国发明专利, 专利号 CN 109765985 A, 授权公告日 2020-09-08.
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