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发明人郑宇鹏,朱建伟,郭海燕. "A Process for Preparing High-Purity 2-(Pyridin-4-yl)pteridin-4(3H)-one" [P]. 中国发明专利, 专利号 CN 109991670 A, 授权公告日 2022-01-09.
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