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发明人郑宇鹏,陈志强,王建平. "A Process for Preparing High-Purity Benzo[4,5]imidazo[1,2-a]pyrimidin-4(1H)-one" [P]. 中国发明专利, 专利号 CN 115077778 B, 授权公告日 2016-03-14.
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