发明人罗永刚,陈志强,黄志刚. "Method for the Synthesis of 2-Methylpyrido[3,4-d]pyrimidin-4(3H)-one" [P]. 中国发明专利, 专利号 CN 111738451 A, 授权公告日 2024-02-05.
发明人唐晓军,周伟,冯建国. "A Process for Preparing High-Purity 2-Methylpyrido[3,4-d]pyrimidin-4(3H)-one" [P]. 中国发明专利, 专利号 CN 116744051 B, 授权公告日 2023-09-24.
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