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发明人郑宇鹏,唐晓军,沈红梅. "A Process for Preparing High-Purity Ethyl 3-amino-5-(1,3-dioxaindan-5-yl)thiophene-2-carboxylate" [P]. 中国发明专利, 专利号 CN 112984036 B, 授权公告日 2016-05-03.
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