发明人周伟,韩伟,杨光. "Method for the Synthesis of 2-Amino-4-chloro-5-fluoro-1-methyl-6-oxo-1,6-dihydropyridine-3-carbonitrile" [P]. 中国发明专利, 专利号 CN 114836232 A, 授权公告日 2017-10-20.
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