发明人李文辉,钱学锋,林芳. "Method for the Synthesis of methyl 7-azaspiro[3.5]nonane-2-carboxylate;hydrochloride" [P]. 中国发明专利, 专利号 CN 114363744 A, 授权公告日 2019-01-12.
发明人唐晓军,陈志强,沈红梅. "A Process for Preparing High-Purity methyl 7-azaspiro[3.5]nonane-2-carboxylate;hydrochloride" [P]. 中国发明专利, 专利号 CN 117648745 B, 授权公告日 2021-10-15.
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