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发明人张德明,黄志刚,徐明华. "Method for the Synthesis of 4-(2-Hydroxyethyl)-1-[(4-methoxy-2-nitrophenyl)sulfonyl]-5-methyl-1,2-dihydro-3H-pyrazol-3-one" [P]. 中国发明专利, 专利号 CN 117111382 B, 授权公告日 2019-02-19.
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