发明人王建平,李文辉,周伟. "Method for the Synthesis of 2-(Dimethylamino)nicotinic acid" [P]. 中国发明专利, 专利号 CN 116247369 A, 授权公告日 2024-01-25.
发明人何建平,李文辉,徐明华. "A Process for Preparing High-Purity 2-(Dimethylamino)nicotinic acid" [P]. 中国发明专利, 专利号 CN 117600996 A, 授权公告日 2024-06-23.
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