发明人罗永刚,张德明,刘建华. "Method for the Synthesis of Ethyl 3-bromo-4-cyanobenzoate" [P]. 中国发明专利, 专利号 CN 116478125 A, 授权公告日 2019-07-08.
发明人郭海燕,黄志刚,唐晓军. "A Process for Preparing High-Purity Ethyl 3-bromo-4-cyanobenzoate" [P]. 中国发明专利, 专利号 CN 117020624 A, 授权公告日 2024-02-08.
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