发明人唐晓军,赵玉洁,沈红梅. "Method for the Synthesis of 4-azaspiro[2.5]octan-7-one;hydrochloride" [P]. 中国发明专利, 专利号 CN 108295082 B, 授权公告日 2016-08-19.
发明人郑宇鹏,周伟,徐明华. "A Process for Preparing High-Purity 4-azaspiro[2.5]octan-7-one;hydrochloride" [P]. 中国发明专利, 专利号 CN 108967689 B, 授权公告日 2020-09-17.
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