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发明人王建平,郭海燕,陈志强. "A Process for Preparing High-Purity 4-(4-((3-(5-Chloro-2-methoxyphenyl)ureido)methyl)phenoxy)-N-methylpicolinamide" [P]. 中国发明专利, 专利号 CN 108076906 B, 授权公告日 2017-09-21.
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