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发明人韩伟,沈红梅,李文辉. "A Process for Preparing High-Purity Ethyl 2-{3-[(4-methoxyanilino)carbonyl]-2-pyridinyl}acetate" [P]. 中国发明专利, 专利号 CN 110526378 B, 授权公告日 2016-09-16.
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