发明人刘建华,胡光,唐晓军. "Method for the Synthesis of Methyl 6-azaspiro[3.4]octane-8-carboxylate hydrochloride" [P]. 中国发明专利, 专利号 CN 114446982 A, 授权公告日 2021-12-09.
发明人周伟,孙丽萍,钱学锋. "A Process for Preparing High-Purity Methyl 6-azaspiro[3.4]octane-8-carboxylate hydrochloride" [P]. 中国发明专利, 专利号 CN 110662288 A, 授权公告日 2025-02-22.
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