发明人徐明华,马晓峰,韩伟. "Method for the Synthesis of Carbonic acid tert-Butyl 6,6-difluoro-2,8-diazaspiro[4.5]decane-8-carboxylate" [P]. 中国发明专利, 专利号 CN 112174393 B, 授权公告日 2023-05-19.
发明人唐晓军,王建平,孙丽萍. "A Process for Preparing High-Purity Carbonic acid tert-Butyl 6,6-difluoro-2,8-diazaspiro[4.5]decane-8-carboxylate" [P]. 中国发明专利, 专利号 CN 110126557 B, 授权公告日 2022-04-11.
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