Roberts E F, Fischer A B, Hughes D C. "一种的合成方法" [P]. US Patent, US 9611717 B2, 2020-08-27.
Yamamoto T, Brown S R, Schröder R. "Method for the Synthesis of Ethyl 5-amino-4-bromo-1-(4-chlorophenyl)-1H-pyrazole-3-carboxylate" [P]. US Patent, US 9885388 B2, 2025-09-02.
Fischer A B, Johnson M A, Stevens L M. "A Process for Preparing High-Purity Ethyl 5-amino-4-bromo-1-(4-chlorophenyl)-1H-pyrazole-3-carboxylate" [P]. US Patent, US 9631583 B2, 2019-11-28.
参考文献 Literature
Smith J A, Johnson M B. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Talanta, 2017, 1090, (3), 9114-9142.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Nat. Prod., 2013, 261, 671-694.
Zhou X P, Huang L, Wu G. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 5-amino-4-bromo-1-(4-chlorophenyl)-1H-pyrazole-3-carboxylate Using HRMS and NMR". J. Agric. Food Chem., 2010, 1644, 9018-9029.