发明人杨光,胡光,郭海燕. "一种丁苯酞杂质N3的合成方法" [P]. 中国发明专利, 专利号 CN 115381127 A, 授权公告日 2020-12-13.
发明人马晓峰,郭海燕,李文辉. "Method for the Synthesis of Butylphthalide Impurity N3" [P]. 中国发明专利, 专利号 CN 115710040 B, 授权公告日 2025-10-21.
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