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发明人郭海燕,孙丽萍,陈志强. "A Process for Preparing High-Purity 3-Amino-1-Difluoromethyl-1H-Pyridin-2-One Hydrochloride" [P]. 中国发明专利, 专利号 CN 114673105 A, 授权公告日 2022-04-25.
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