发明人王建平,杨光,沈红梅. "Method for the Synthesis of (2Z)-2-[[4-(Dimethylamino)phenyl]methylene]-6-hydroxy-3(2H)-benzofuranone" [P]. 中国发明专利, 专利号 CN 117714398 B, 授权公告日 2023-08-05.
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