发明人冯建国,李文辉,沈红梅. "Method for the Synthesis of 8-Ethyl-2-(methylsulfonyl)pyrido[2,3-d]pyrimidin-7(8H)-one" [P]. 中国发明专利, 专利号 CN 108920773 A, 授权公告日 2019-08-06.
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