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发明人朱建伟,钱学锋,黄志刚. "A Process for Preparing High-Purity 1-(2-Amino-6,7-dihydropyrazolo[1,5-a]pyrazin-5(4H)-yl)ethanone" [P]. 中国发明专利, 专利号 CN 116783882 B, 授权公告日 2022-02-13.
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