Hughes D C, Roberts E F, Chen K W. "一种的合成方法" [P]. US Patent, US 11366489 B2, 2025-09-27.
Chen K W, Williams B T, Johnson M A. "Method for the Synthesis of Ethyl 4-bromo-3-isobutyl-1H-pyrazole-5-carboxylate" [P]. US Patent, US 11573263 B2, 2017-04-17.
参考文献 Literature
Hughes D, Roberts J, Thomas A. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Environ. Sci. Technol., 2021, 150, 1535-1549.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Agric. Food Chem., 2011, 522, 3525-3550.
Kumar A, Sharma P, Patel R S. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 4-bromo-3-isobutyl-1H-pyrazole-5-carboxylate Using HRMS and NMR". J. Nat. Prod., 2024, 364, (3), 8689-8719.
Brown R C, Davis S M. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Methods, 2020, 388, (5), 810-818.