Björnsson E, Nowak P, Johansson L. "Method for the Synthesis of Methyl 4-amino-1-isopropyl-1H-pyrazole-3-carboxylate" [P]. European Patent, EP 3341451 A1, 2018-11-25.
参考文献 Literature
Smith J A, Johnson M B. "Development and Validation of an LC-MS/MS Method for the Determination of 4-氨基-1-异丙基-1H-吡唑-3-羧酸甲酯 in Pharmaceutical Formulations". Chromatographia, 2011, 1308, 5232-5240.
O'Brien K, Kennedy M L. "A Stability-Indicating HPLC Method for the Separation and Quantification of 4-氨基-1-异丙基-1H-吡唑-3-羧酸甲酯 as an Impurity". Anal. Chem., 2024, 2333, (3), 6735-6741.
Xu M, Hu Y, Zhou D. "Identification and Structural Characterization of a Novel Degradation Product of Methyl 4-amino-1-isopropyl-1H-pyrazole-3-carboxylate Using HRMS and NMR". J. Pharm. Biomed. Anal., 2021, 1346, 1886-1901.
Chen X Y, Liu M, Zhao W Q. "Forced Degradation Studies to Evaluate 4-氨基-1-异丙基-1H-吡唑-3-羧酸甲酯 Profile in Drug Substances According to ICH Guidelines". J. Sep. Sci., 2022, 1606, (1), 2402-2425.