发明人杨光,韩伟,唐晓军. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 108298915 A, 授权公告日 2021-01-16.
发明人朱建伟,周伟,徐明华. "Method for the Synthesis of tert-Butyl (7S,8R)-7,8-difluoro-2-azaspiro[4.4]nonane-2-carboxylate" [P]. 中国发明专利, 专利号 CN 111240224 A, 授权公告日 2025-06-20.
发明人朱建伟,张德明,胡光. "A Process for Preparing High-Purity tert-Butyl (7S,8R)-7,8-difluoro-2-azaspiro[4.4]nonane-2-carboxylate" [P]. 中国发明专利, 专利号 CN 115593009 B, 授权公告日 2024-10-17.
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