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发明人李文辉,刘建华,沈红梅. "Method for the Synthesis of Ethyl 2-(3-oxo-3,4-dihydroquinoxalin-2(1H)-ylidene)acetate" [P]. 中国发明专利, 专利号 CN 111859699 A, 授权公告日 2021-03-17.
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