发明人张德明,李文辉,郑宇鹏. "Method for the Synthesis of 5-Chloro-1-(4-chlorobenzyl)-6-oxo-1,6-dihydropyridine-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 109572450 A, 授权公告日 2022-03-08.
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