Brown S R, Thompson G K, O'Brien P Q. "一种的合成方法" [P]. US Patent, US 9439893 B2, 2022-01-10.
发明人张德明,马晓峰,黄志刚. "Method for the Synthesis of 1-(4-Chlorophenyl)-4-(2-hydroxyethyl)-5-oxo-2,5-dihydro-1h-pyrazole-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 112443673 B, 授权公告日 2023-05-25.
Davis P L, O'Brien P Q, Patel M V. "A Process for Preparing High-Purity 1-(4-Chlorophenyl)-4-(2-hydroxyethyl)-5-oxo-2,5-dihydro-1h-pyrazole-3-carboxylic acid" [P]. US Patent, US 10458660 B2, 2024-09-16.
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