发明人马晓峰,冯建国,杨光. "Method for the Synthesis of (4-Hydroxypyrazol-1-yl)-acetic acid tert-butyl ester" [P]. 中国发明专利, 专利号 CN 110011577 B, 授权公告日 2017-07-04.
发明人刘建华,郑宇鹏,黄志刚. "A Process for Preparing High-Purity (4-Hydroxypyrazol-1-yl)-acetic acid tert-butyl ester" [P]. 中国发明专利, 专利号 CN 110228990 B, 授权公告日 2021-11-25.
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