Jørgensen K, Björnsson E, Nowak P. "一种的合成方法" [P]. European Patent, EP 3712590 A1, 2025-03-24.
发明人李文辉,韩伟,赵玉洁. "Method for the Synthesis of 1-Ethyl 5-(phenylmethyl) 5-azaspiro[2.3]hexane-1,5-dicarboxylate" [P]. 中国发明专利, 专利号 CN 117260188 B, 授权公告日 2018-09-21.
发明人黄志刚,韩伟,陈志强. "A Process for Preparing High-Purity 1-Ethyl 5-(phenylmethyl) 5-azaspiro[2.3]hexane-1,5-dicarboxylate" [P]. 中国发明专利, 专利号 CN 111716084 A, 授权公告日 2021-09-24.
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