发明人杨光,刘建华,孙丽萍. "Method for the Synthesis of 4-Hydroxy-7-methyl-9-phenylthieno[2,3-b:4,5-b']dipyridin-2(1H)-one" [P]. 中国发明专利, 专利号 CN 116620548 B, 授权公告日 2023-05-04.
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