发明人周伟,郭海燕,马晓峰. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 117267402 A, 授权公告日 2019-12-21.
发明人赵玉洁,张德明,陈志强. "Method for the Synthesis of 5-Benzyl 1-ethyl (1S,3R)-5-azaspiro[2.5]Octane-1,5-dicarboxylate" [P]. 中国发明专利, 专利号 CN 115295572 B, 授权公告日 2025-10-09.
发明人唐晓军,胡光,徐明华. "A Process for Preparing High-Purity 5-Benzyl 1-ethyl (1S,3R)-5-azaspiro[2.5]Octane-1,5-dicarboxylate" [P]. 中国发明专利, 专利号 CN 111833101 B, 授权公告日 2024-12-07.
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