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发明人徐明华,张德明,韩伟. "Method for the Synthesis of 5-(3,4-Dichlorophenyl)-1,2,4-oxadiazole-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 112179748 B, 授权公告日 2018-06-03.
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