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发明人林芳,何建平,马晓峰. "A Process for Preparing High-Purity 1-(Piperazin-1-yl)-2-(pyrrolidin-1-yl)ethane-1,2-dione" [P]. 中国发明专利, 专利号 CN 109667577 A, 授权公告日 2019-11-27.
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