Kumar R, Mueller T, Davis P L. "Method for the Synthesis of 5-(4-Methylphenyl)-1-phenyl-1H-pyrazole-4-carboxylic acid" [P]. US Patent, US 10143922 B2, 2024-09-23.
Stevens L M, Mueller T, Davis P L. "A Process for Preparing High-Purity 5-(4-Methylphenyl)-1-phenyl-1H-pyrazole-4-carboxylic acid" [P]. US Patent, US 9528885 B2, 2018-08-06.
参考文献 Literature
Kowalski T, Nowak Z. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Molecules, 2016, 1323, (4), 1125-1141.
Wang L, Li J, Zhang H. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2011, 1426, (7), 19-39.
Wang L, Li J, Zhang H. "Identification and Structural Characterization of a Novel Degradation Product of 5-(4-Methylphenyl)-1-phenyl-1H-pyrazole-4-carboxylic acid Using HRMS and NMR". J. Pharm. Biomed. Anal., 2012, 740, (10), 8157-8170.