发明人王建平,马晓峰,杨光. "Method for the Synthesis of 5-(2,7-Diazaspiro[4.4]nonan-2-yl)-1,2,4-oxadiazole" [P]. 中国发明专利, 专利号 CN 108665144 B, 授权公告日 2025-04-21.
发明人郑宇鹏,孙丽萍,何建平. "A Process for Preparing High-Purity 5-(2,7-Diazaspiro[4.4]nonan-2-yl)-1,2,4-oxadiazole" [P]. 中国发明专利, 专利号 CN 113207604 A, 授权公告日 2020-07-13.
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