发明人韩伟,沈红梅,朱建伟. "Method for the Synthesis of Ethyl 5-bromo-4-oxo-1,4-dihydropyridine-3-carboxylate" [P]. 中国发明专利, 专利号 CN 109025445 A, 授权公告日 2022-10-28.
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