发明人周伟,马晓峰,韩伟. "Method for the Synthesis of N-(4-(2-(Dimethylamino)-2-oxoethyl)phenyl)pyrazine-2-carboxamide" [P]. 中国发明专利, 专利号 CN 115865712 A, 授权公告日 2021-01-03.
发明人张德明,胡光,郑宇鹏. "A Process for Preparing High-Purity N-(4-(2-(Dimethylamino)-2-oxoethyl)phenyl)pyrazine-2-carboxamide" [P]. 中国发明专利, 专利号 CN 114360961 A, 授权公告日 2021-04-27.
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