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发明人孙丽萍,郑宇鹏,王建平. "A Process for Preparing High-Purity 5-Bromo-2-ethyl-7-fluoro-2,3-dihydro-1-benzofuran-3-one" [P]. 中国发明专利, 专利号 CN 109306261 B, 授权公告日 2015-07-22.
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