发明人刘建华,高志强,韩伟. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 116344662 A, 授权公告日 2021-05-27.
发明人唐晓军,杨光,马晓峰. "Method for the Synthesis of 1-Benzyl 9-(tert-butyl) 8,8-dimethyl-5-oxo-1,4,9-triazaspiro[5.5]Undecane-1,9-dicarboxylate" [P]. 中国发明专利, 专利号 CN 112129187 B, 授权公告日 2021-10-16.
发明人李文辉,沈红梅,高志强. "A Process for Preparing High-Purity 1-Benzyl 9-(tert-butyl) 8,8-dimethyl-5-oxo-1,4,9-triazaspiro[5.5]Undecane-1,9-dicarboxylate" [P]. 中国发明专利, 专利号 CN 116972067 A, 授权公告日 2025-07-19.
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