发明人张德明,唐晓军,刘建华. "Method for the Synthesis of 2-Ethyl-3H-imidazo[4,5-b]pyridine-7-carboxylic acid hydrochloride" [P]. 中国发明专利, 专利号 CN 111994192 A, 授权公告日 2018-12-20.
发明人李文辉,赵玉洁,冯建国. "A Process for Preparing High-Purity 2-Ethyl-3H-imidazo[4,5-b]pyridine-7-carboxylic acid hydrochloride" [P]. 中国发明专利, 专利号 CN 108098939 B, 授权公告日 2025-04-12.
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