Klinger H, Davis P L, Schröder R. "一种的合成方法" [P]. US Patent, US 10778880 B2, 2021-04-04.
发明人马晓峰,郑宇鹏,唐晓军. "Method for the Synthesis of 4-(4-(2-Hydroxyethyl)-3-methyl-5-oxo-2,5-dihydro-1H-pyrazol-1-yl)benzoic acid" [P]. 中国发明专利, 专利号 CN 116910542 B, 授权公告日 2017-12-22.
Klinger H, Fischer A B, Davis P L. "A Process for Preparing High-Purity 4-(4-(2-Hydroxyethyl)-3-methyl-5-oxo-2,5-dihydro-1H-pyrazol-1-yl)benzoic acid" [P]. US Patent, US 11979982 B2, 2021-11-14.
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