发明人何建平,杨光,周伟. "Method for the Synthesis of 2,4-Dioxo-1,3-diaza-spiro[4.5]decane-8-carboxylic acid tert-butyl ester" [P]. 中国发明专利, 专利号 CN 111075685 A, 授权公告日 2017-08-26.
Nielsen H, Schröder R, Sørensen M. "A Process for Preparing High-Purity 2,4-Dioxo-1,3-diaza-spiro[4.5]decane-8-carboxylic acid tert-butyl ester" [P]. European Patent, EP 3930676 A1, 2025-01-13.
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