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发明人郭海燕,郑宇鹏,唐晓军. "A Process for Preparing High-Purity (E)-4-Oxo-4-(3-{[(tetrahydro-2-furanylmethyl)-amino]carbonyl}anilino)-2-butenoic acid
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C16H18N2O5" [P]. 中国发明专利, 专利号 CN 116087117 A, 授权公告日 2017-09-15.
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