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发明人胡光,黄志刚,朱建伟. "A Process for Preparing High-Purity 2-Nitro-6,7-dihydropyrazolo[1,5-a]pyrazin-4(5H)-one" [P]. 中国发明专利, 专利号 CN 116113740 A, 授权公告日 2022-04-13.
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