发明人林芳,沈红梅,徐明华. "Method for the Synthesis of Tert-butyl 5-methyl-2,5,8-triazaspiro[3.5]Nonane-2-carboxylate" [P]. 中国发明专利, 专利号 CN 110197209 A, 授权公告日 2019-07-15.
发明人郑宇鹏,刘建华,朱建伟. "A Process for Preparing High-Purity Tert-butyl 5-methyl-2,5,8-triazaspiro[3.5]Nonane-2-carboxylate" [P]. 中国发明专利, 专利号 CN 116914960 B, 授权公告日 2019-07-23.
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