发明人胡光,李文辉,冯建国. "Method for the Synthesis of 6,7-Dimethoxy-2-(4-methylphenyl)-4H-3,1-benzoxazin-4-one" [P]. 中国发明专利, 专利号 CN 117886781 A, 授权公告日 2025-10-04.
发明人韩伟,赵玉洁,郑宇鹏. "A Process for Preparing High-Purity 6,7-Dimethoxy-2-(4-methylphenyl)-4H-3,1-benzoxazin-4-one" [P]. 中国发明专利, 专利号 CN 109240920 B, 授权公告日 2015-09-07.
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