发明人罗永刚,陈志强,张德明. "Method for the Synthesis of 3-(4-Chlorophenyl)-2,7-dimethylpyrazolo[1,5-a]pyrimidine-5-carboxylic acid" [P]. 中国发明专利, 专利号 CN 113310673 A, 授权公告日 2019-02-07.
发明人朱建伟,钱学锋,冯建国. "A Process for Preparing High-Purity 3-(4-Chlorophenyl)-2,7-dimethylpyrazolo[1,5-a]pyrimidine-5-carboxylic acid" [P]. 中国发明专利, 专利号 CN 114208298 A, 授权公告日 2022-09-24.
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