发明人韩伟,朱建伟,徐明华. "一种2,7-二氮杂螺[4.4]壬烷的合成方法" [P]. 中国发明专利, 专利号 CN 110435408 A, 授权公告日 2022-01-03.
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发明人唐晓军,杨光,张德明. "A Process for Preparing High-Purity 2,7-Diazaspiro[4.4]nonane" [P]. 中国发明专利, 专利号 CN 117953773 B, 授权公告日 2025-02-04.
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