发明人杨光,沈红梅,王建平. "Method for the Synthesis of Icotinib Impurity 3" [P]. 中国发明专利, 专利号 CN 108582143 A, 授权公告日 2017-11-08.
发明人唐晓军,黄志刚,郭海燕. "A Process for Preparing High-Purity Icotinib Impurity 3" [P]. 中国发明专利, 专利号 CN 115114980 A, 授权公告日 2023-01-20.
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