发明人杨光,冯建国,罗永刚. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 113464454 A, 授权公告日 2022-05-20.
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发明人唐晓军,何建平,徐明华. "A Process for Preparing High-Purity 5-(3-Formylphenyl)-2-hydroxyisonicotinic acid" [P]. 中国发明专利, 专利号 CN 113876666 B, 授权公告日 2022-05-13.
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