发明人孙丽萍,赵玉洁,胡光. "Method for the Synthesis of 7-(4-Methylphenyl)pyrazolo[1,5-a]pyrimidine-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 110639456 B, 授权公告日 2024-04-05.
发明人郭海燕,郑宇鹏,周伟. "A Process for Preparing High-Purity 7-(4-Methylphenyl)pyrazolo[1,5-a]pyrimidine-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 117599240 B, 授权公告日 2021-06-27.
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