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发明人刘建华,韩伟,何建平. "Method for the Synthesis of 1-Chloro-4-(2-thioxobenzo[d]oxazol-3(2H)-yl)but-3-en-2-one" [P]. 中国发明专利, 专利号 CN 117188352 B, 授权公告日 2018-08-24.
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