发明人冯建国,郑宇鹏,杨光. "Method for the Synthesis of 4-chloropyrazolo[1,5-a]pyridine-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 117692627 B, 授权公告日 2020-03-28.
Lefèvre J P, Jørgensen K, Björnsson E. "A Process for Preparing High-Purity 4-chloropyrazolo[1,5-a]pyridine-2-carboxylic acid" [P]. European Patent, EP 3846078 A1, 2017-10-22.
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