发明人林芳,冯建国,赵玉洁. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 117772489 A, 授权公告日 2024-02-14.
Roberts E F, Hughes D C, Davis P L. "Method for the Synthesis of 1-(4-Chlorophenyl)-4-(2-hydroxyethyl)-5-oxo-4,5-dihydro-1H-pyrazole-3-carboxylic acid" [P]. US Patent, US 11120647 B2, 2017-08-18.
发明人胡光,王建平,郭海燕. "A Process for Preparing High-Purity 1-(4-Chlorophenyl)-4-(2-hydroxyethyl)-5-oxo-4,5-dihydro-1H-pyrazole-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 117130097 B, 授权公告日 2022-10-08.
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