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发明人孙丽萍,王建平,马晓峰. "A Process for Preparing High-Purity Ethyl (E)-4-chloro-5-(((2-hydroxyethyl)imino)methyl)-3-methylbenzofuran-2-carboxylate" [P]. 中国发明专利, 专利号 CN 108393897 B, 授权公告日 2018-02-11.
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