发明人张德明,沈红梅,罗永刚. "Method for the Synthesis of 8-tert-Butyl 2-methyl 8-azaspiro[4.5]decane-2,8-dicarboxylate, 97%" [P]. 中国发明专利, 专利号 CN 112029528 A, 授权公告日 2021-05-02.
发明人唐晓军,何建平,马晓峰. "A Process for Preparing High-Purity 8-tert-Butyl 2-methyl 8-azaspiro[4.5]decane-2,8-dicarboxylate, 97%" [P]. 中国发明专利, 专利号 CN 115057085 B, 授权公告日 2019-12-18.
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