Schröder R, Kowalski A, Nielsen H. "一种的合成方法" [P]. European Patent, EP 3491085 A1, 2017-02-01.
Rossi M, Mueller T C, Nielsen H. "Method for the Synthesis of 2-Amino-4-(4-bromo-3,5-dimethyl-1h-pyrazol-1-yl)-2-methylbutanamide" [P]. European Patent, EP 3951835 A1, 2015-05-23.
Jørgensen K, Nielsen H, Sørensen M. "A Process for Preparing High-Purity 2-Amino-4-(4-bromo-3,5-dimethyl-1h-pyrazol-1-yl)-2-methylbutanamide" [P]. European Patent, EP 3953811 A1, 2025-08-19.
参考文献 Literature
Xu M, Hu Y, Zhou D. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chem., 2020, 1489, (6), 4604-4615.
Hughes D, Roberts J, Thomas A. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2014, 829, 8437-8467.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of 2-Amino-4-(4-bromo-3,5-dimethyl-1h-pyrazol-1-yl)-2-methylbutanamide Using HRMS and NMR". J. Sep. Sci., 2024, 1459, (8), 6085-6093.
Xu M, Hu Y, Zhou D. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Nat. Prod., 2022, 1116, (5), 4205-4210.