发明人徐明华,朱建伟,韩伟. "Method for the Synthesis of Tert-butyl 4-fluoro-2,9-diazaspiro[5.5]Undecane-2-carboxylate" [P]. 中国发明专利, 专利号 CN 108735642 B, 授权公告日 2015-12-17.
Johansson L, Nielsen H, Rossi M. "A Process for Preparing High-Purity Tert-butyl 4-fluoro-2,9-diazaspiro[5.5]Undecane-2-carboxylate" [P]. European Patent, EP 3374200 A1, 2017-01-25.
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