发明人杨光,陈志强,徐明华. "Method for the Synthesis of 1-(3,4-Difluorophenyl)-3-(4-((6,7-dimethoxyquinolin-4-yl)oxy)-2-fluorophenyl)urea" [P]. 中国发明专利, 专利号 CN 108987758 A, 授权公告日 2025-10-10.
发明人张德明,钱学锋,何建平. "A Process for Preparing High-Purity 1-(3,4-Difluorophenyl)-3-(4-((6,7-dimethoxyquinolin-4-yl)oxy)-2-fluorophenyl)urea" [P]. 中国发明专利, 专利号 CN 116274467 A, 授权公告日 2017-04-16.
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