Hughes D C, Patel M V, Anderson J P. "一种的合成方法" [P]. US Patent, US 10368735 B2, 2016-05-06.
发明人黄志刚,沈红梅,张德明. "Method for the Synthesis of 4-Isopropyl-1H-pyrazole-5-carboxylic acid" [P]. 中国发明专利, 专利号 CN 108865207 B, 授权公告日 2016-08-04.
Roberts E F, Williams B T, Stevens L M. "A Process for Preparing High-Purity 4-Isopropyl-1H-pyrazole-5-carboxylic acid" [P]. US Patent, US 10645677 B2, 2023-08-12.
参考文献 Literature
O'Brien K, Kennedy M L. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Food Chem., 2013, 954, 2371-2388.
Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Chromatogr. A, 2020, 2212, (11), 7377-7390.
Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of 4-Isopropyl-1H-pyrazole-5-carboxylic acid Using HRMS and NMR". Anal. Chem., 2011, 708, (4), 9157-9181.
Xu M, Hu Y, Zhou D. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Biomed. Chromatogr., 2011, 2229, 9735-9740.