发明人李文辉,陈志强,罗永刚. "Method for the Synthesis of 3-(3-Ethyl-3H-imidazo[4,5-b]pyridin-2-yl)propanoic acid" [P]. 中国发明专利, 专利号 CN 109917314 B, 授权公告日 2017-11-13.
Sørensen M, Nielsen H, Lefèvre J P. "A Process for Preparing High-Purity 3-(3-Ethyl-3H-imidazo[4,5-b]pyridin-2-yl)propanoic acid" [P]. European Patent, EP 3570413 A1, 2018-05-15.
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