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发明人冯建国,刘建华,王建平. "A Process for Preparing High-Purity (2E)-2-[(Pyridin-3-yl)methylidene]-2,3,4,9-tetrahydro-1H-carbazol-1-one" [P]. 中国发明专利, 专利号 CN 113495408 A, 授权公告日 2016-08-19.
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