Fischer A B, Chen K W, Lee S K. "Method for the Synthesis of tert-butyl 5-formyl-1-methyl-1H-pyrazole-4-carboxylate" [P]. US Patent, US 10603092 B2, 2018-03-06.
Yamamoto T, Anderson J P, Mueller T. "A Process for Preparing High-Purity tert-butyl 5-formyl-1-methyl-1H-pyrazole-4-carboxylate" [P]. US Patent, US 10108315 B2, 2015-03-04.
参考文献 Literature
Hughes D, Roberts J, Thomas A. "Development and Validation of an LC-MS/MS Method for the Determination of tert-butyl 5-formyl-1-methyl-1H-pyrazole-4-carboxylate in Pharmaceutical Formulations". Talanta, 2015, 158, (10), 6357-6377.
Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of tert-butyl 5-formyl-1-methyl-1H-pyrazole-4-carboxylate as an Impurity". Chromatographia, 2021, 1299, 3119-3141.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of tert-butyl 5-formyl-1-methyl-1H-pyrazole-4-carboxylate Using HRMS and NMR". Chemosphere, 2018, 1093, (2), 3974-3992.