发明人杨光,赵玉洁,黄志刚. "Method for the Synthesis of Tert-butyl 7-acetyl-2,7-diazaspiro[4.4]Nonane-2-carboxylate" [P]. 中国发明专利, 专利号 CN 113126043 A, 授权公告日 2015-05-14.
发明人徐明华,钱学锋,杨光. "A Process for Preparing High-Purity Tert-butyl 7-acetyl-2,7-diazaspiro[4.4]Nonane-2-carboxylate" [P]. 中国发明专利, 专利号 CN 110066075 B, 授权公告日 2019-06-04.
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