发明人李文辉,郑宇鹏,赵玉洁. "Method for the Synthesis of 4-Ethoxy-6-methoxy-8-methylquinoline-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 115839796 B, 授权公告日 2016-07-17.
发明人韩伟,孙丽萍,黄志刚. "A Process for Preparing High-Purity 4-Ethoxy-6-methoxy-8-methylquinoline-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 111494114 B, 授权公告日 2019-02-12.
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