Schröder R, Rossi M, Sørensen M. "一种的合成方法" [P]. European Patent, EP 3665581 A1, 2019-06-22.
发明人沈红梅,冯建国,孙丽萍. "Method for the Synthesis of Ethyl 2-(4-bromo-1H-pyrazol-1-yl)-2-methylpropanoate" [P]. 中国发明专利, 专利号 CN 115189250 B, 授权公告日 2024-12-22.
发明人孙丽萍,张德明,韩伟. "A Process for Preparing High-Purity Ethyl 2-(4-bromo-1H-pyrazol-1-yl)-2-methylpropanoate" [P]. 中国发明专利, 专利号 CN 109355087 B, 授权公告日 2017-05-07.
参考文献 Literature
Kowalski T, Nowak Z. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chem., 2010, 1258, (2), 5444-5453.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2016, 2216, (10), 3088-3111.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 2-(4-bromo-1H-pyrazol-1-yl)-2-methylpropanoate Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2025, 1193, (4), 7513-7536.
Smith J A, Johnson M B. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Pharm. Biomed. Anal., 2019, 1891, 5304-5313.