发明人李文辉,张德明,王建平. "Method for the Synthesis of 2-(4-Formyl-phenyl)-4-methyl-nicotinic acid ethylester" [P]. 中国发明专利, 专利号 CN 115421735 B, 授权公告日 2021-12-27.
发明人赵玉洁,郭海燕,陈志强. "A Process for Preparing High-Purity 2-(4-Formyl-phenyl)-4-methyl-nicotinic acid ethylester" [P]. 中国发明专利, 专利号 CN 117498348 B, 授权公告日 2021-07-03.
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