Martínez F, Björnsson E, Nowak P. "Method for the Synthesis of ethyl 3-(hydroxymethyl)-1-methyl-1H-pyrazole-5-carboxylate" [P]. European Patent, EP 3083821 A1, 2023-05-27.
Nielsen H, Sørensen M, Rossi M. "A Process for Preparing High-Purity ethyl 3-(hydroxymethyl)-1-methyl-1H-pyrazole-5-carboxylate" [P]. European Patent, EP 3434338 A1, 2022-04-18.
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". J. Agric. Food Chem., 2017, 1639, 6815-6844.
Brown R C, Davis S M. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Biomed. Chromatogr., 2024, 242, 3149-3176.
Garcia M, Rodriguez P. "Identification and Structural Characterization of a Novel Degradation Product of ethyl 3-(hydroxymethyl)-1-methyl-1H-pyrazole-5-carboxylate Using HRMS and NMR". J. Chromatogr. A, 2015, 678, 132-153.
Mueller T, Schmidt R K. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chem., 2018, 930, (3), 7238-7249.