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发明人黄志刚,何建平,朱建伟. "A Process for Preparing High-Purity Ethyl N-[(2E)-2-cyano-2-{[(4-fluorophenyl)amino]methylidene}acetyl]carbamate" [P]. 中国发明专利, 专利号 CN 109727020 A, 授权公告日 2016-02-27.
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