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发明人冯建国,郭海燕,唐晓军. "A Process for Preparing High-Purity 5-(Methylsulfonyl)-2-thioxo-4-(m-tolyl)-1,2-dihydropyridine-3-carbonitrile" [P]. 中国发明专利, 专利号 CN 111337890 A, 授权公告日 2023-12-14.
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