Björnsson E, Jørgensen K, Lefèvre J P. "Method for the Synthesis of 7-Hydroxy-5-(trifluoromethyl)pyrazolo[1,5-a]pyrimidine-3-carboxylic acid" [P]. European Patent, EP 3260725 A1, 2025-03-21.
发明人刘建华,徐明华,李文辉. "A Process for Preparing High-Purity 7-Hydroxy-5-(trifluoromethyl)pyrazolo[1,5-a]pyrimidine-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 116795669 B, 授权公告日 2025-06-06.
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