发明人周伟,韩伟,何建平. "Method for the Synthesis of 5-(6-Chloropyridin-3-yl)-4,6-diazaspiro[2.4]Hept-4-en-7-one" [P]. 中国发明专利, 专利号 CN 116832086 B, 授权公告日 2025-06-10.
发明人朱建伟,马晓峰,徐明华. "A Process for Preparing High-Purity 5-(6-Chloropyridin-3-yl)-4,6-diazaspiro[2.4]Hept-4-en-7-one" [P]. 中国发明专利, 专利号 CN 115397875 B, 授权公告日 2020-01-01.
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