发明人陈志强,周伟,孙丽萍. "Method for the Synthesis of 5-Ethyl-2-methyl-nicotinic acid ethyl ester" [P]. 中国发明专利, 专利号 CN 114740595 A, 授权公告日 2017-01-23.
发明人沈红梅,王建平,徐明华. "A Process for Preparing High-Purity 5-Ethyl-2-methyl-nicotinic acid ethyl ester" [P]. 中国发明专利, 专利号 CN 116267052 A, 授权公告日 2025-01-13.
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