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发明人林芳,陈志强,钱学锋. "A Process for Preparing High-Purity 5,5-difluoro-5H,6H,7H-pyrrolo[2,3-d]pyrimidin-6-one" [P]. 中国发明专利, 专利号 CN 110629357 B, 授权公告日 2018-06-18.
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