发明人杨光,黄志刚,张德明. "Method for the Synthesis of 3-Methyl-5-(trifluoromethyl)pyrazolo[1,5-a]pyrimidine-7-carboxylic acid" [P]. 中国发明专利, 专利号 CN 113989221 A, 授权公告日 2020-05-19.
发明人赵玉洁,罗永刚,钱学锋. "A Process for Preparing High-Purity 3-Methyl-5-(trifluoromethyl)pyrazolo[1,5-a]pyrimidine-7-carboxylic acid" [P]. 中国发明专利, 专利号 CN 111297411 B, 授权公告日 2018-01-07.
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