发明人冯建国,杨光,刘建华. "Method for the Synthesis of tert-butyl 4-(4-((8-ethyl-7-oxo-7,8-dihydropyrido[2,3-d]pyrimidin-2-yl)amino)-2-fluorophenyl)piperazine-1-carboxylate" [P]. 中国发明专利, 专利号 CN 112057246 A, 授权公告日 2023-06-03.
发明人马晓峰,黄志刚,杨光. "A Process for Preparing High-Purity tert-butyl 4-(4-((8-ethyl-7-oxo-7,8-dihydropyrido[2,3-d]pyrimidin-2-yl)amino)-2-fluorophenyl)piperazine-1-carboxylate" [P]. 中国发明专利, 专利号 CN 110004667 B, 授权公告日 2016-01-10.
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