Schröder R, Stevens L M, Lee S K. "Method for the Synthesis of Methyl 4-bromo-5-hydroxy-1-methyl-1H-pyrazole-3-carboxylate" [P]. US Patent, US 10613196 B2, 2015-03-04.
发明人黄志刚,徐明华,冯建国. "A Process for Preparing High-Purity Methyl 4-bromo-5-hydroxy-1-methyl-1H-pyrazole-3-carboxylate" [P]. 中国发明专利, 专利号 CN 112893852 A, 授权公告日 2018-06-12.
参考文献 Literature
Fischer P, Wagner E. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Molecules, 2010, 1653, (6), 7640-7651.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Sep. Sci., 2011, 2453, 6128-6135.
Wang L, Li J, Zhang H. "Identification and Structural Characterization of a Novel Degradation Product of Methyl 4-bromo-5-hydroxy-1-methyl-1H-pyrazole-3-carboxylate Using HRMS and NMR". Environ. Sci. Technol., 2010, 1751, 8184-8196.