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发明人林芳,赵玉洁,徐明华. "A Process for Preparing High-Purity 6-Oxo-1-propyl-N-(1h-pyrazol-3-yl)-1,6-dihydropyridazine-3-carboxamide" [P]. 中国发明专利, 专利号 CN 109751825 B, 授权公告日 2021-06-22.
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