Fischer A B, Yamamoto T, Thompson G K. "一种的合成方法" [P]. US Patent, US 9344975 B2, 2024-03-26.
发明人张德明,朱建伟,郭海燕. "Method for the Synthesis of tert-Butyl 8-oxo-3,9-diazaspiro[5.5]undecane-3-carboxylate" [P]. 中国发明专利, 专利号 CN 108511181 B, 授权公告日 2018-08-21.
发明人冯建国,黄志刚,孙丽萍. "A Process for Preparing High-Purity tert-Butyl 8-oxo-3,9-diazaspiro[5.5]undecane-3-carboxylate" [P]. 中国发明专利, 专利号 CN 115540519 A, 授权公告日 2019-03-23.
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