发明人杨光,何建平,周伟. "Method for the Synthesis of Methyl 5-((tert-butoxycarbonyl)amino)-2-azaspiro[3.3]Heptane-6-carboxylate" [P]. 中国发明专利, 专利号 CN 114335686 B, 授权公告日 2021-07-07.
发明人黄志刚,沈红梅,唐晓军. "A Process for Preparing High-Purity Methyl 5-((tert-butoxycarbonyl)amino)-2-azaspiro[3.3]Heptane-6-carboxylate" [P]. 中国发明专利, 专利号 CN 111389072 A, 授权公告日 2020-01-02.
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