发明人张德明,徐明华,郑宇鹏. "Method for the Synthesis of n-(4-(Methylthio)phenyl)-6-oxo-1,6-dihydropyridine-3-carboxamide" [P]. 中国发明专利, 专利号 CN 108758666 B, 授权公告日 2019-06-21.
发明人周伟,林芳,张德明. "A Process for Preparing High-Purity n-(4-(Methylthio)phenyl)-6-oxo-1,6-dihydropyridine-3-carboxamide" [P]. 中国发明专利, 专利号 CN 114879034 A, 授权公告日 2017-07-03.
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