发明人李文辉,陈志强,马晓峰. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 113141718 A, 授权公告日 2018-09-15.
发明人罗永刚,胡光,朱建伟. "Method for the Synthesis of 3-(4-Cyano-3-methyl-1-oxo-1,5-dihydrobenzo[4,5]imidazo[1,2-a]pyridin-2-yl)propanoic acid" [P]. 中国发明专利, 专利号 CN 115026004 B, 授权公告日 2018-05-12.
Schröder R, Johansson L, Mueller T C. "A Process for Preparing High-Purity 3-(4-Cyano-3-methyl-1-oxo-1,5-dihydrobenzo[4,5]imidazo[1,2-a]pyridin-2-yl)propanoic acid" [P]. European Patent, EP 3933407 A1, 2018-08-28.
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