发明人郭海燕,张德明,马晓峰. "Method for the Synthesis of Methyl 6-azaspiro[2.5]octane-1-carboxylate hydrochloride" [P]. 中国发明专利, 专利号 CN 116174034 A, 授权公告日 2020-03-10.
发明人杨光,胡光,唐晓军. "A Process for Preparing High-Purity Methyl 6-azaspiro[2.5]octane-1-carboxylate hydrochloride" [P]. 中国发明专利, 专利号 CN 112270793 B, 授权公告日 2017-02-16.
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