发明人黄志刚,周伟,杨光. "Method for the Synthesis of Ethyl 7-hydroxypyrazolo[1,5-a]pyrimidine-5-carboxylate" [P]. 中国发明专利, 专利号 CN 115062110 B, 授权公告日 2021-01-25.
发明人李文辉,冯建国,郑宇鹏. "A Process for Preparing High-Purity Ethyl 7-hydroxypyrazolo[1,5-a]pyrimidine-5-carboxylate" [P]. 中国发明专利, 专利号 CN 111350557 A, 授权公告日 2022-06-13.
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