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发明人郭海燕,王建平,林芳. "Method for the Synthesis of Ethyl 3-(3-chlorophenyl)-7-methylpyrazolo[1,5-a]pyrimidine-6-carboxylate" [P]. 中国发明专利, 专利号 CN 111162220 B, 授权公告日 2022-07-28.
发明人张德明,郑宇鹏,李文辉. "A Process for Preparing High-Purity Ethyl 3-(3-chlorophenyl)-7-methylpyrazolo[1,5-a]pyrimidine-6-carboxylate" [P]. 中国发明专利, 专利号 CN 114904020 A, 授权公告日 2024-12-28.
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