发明人刘建华,王建平,韩伟. "Method for the Synthesis of Ethyl 3-bromo-1-(3-chloropyridin-2-yl)-4,5-dihydro-1H-pyrazole-5-carboxylate" [P]. 中国发明专利, 专利号 CN 111708711 B, 授权公告日 2022-05-20.
参考文献 Literature
Garcia M, Rodriguez P. "Development and Validation of an LC-MS/MS Method for the Determination of 3-溴-1-(3-氯吡啶-2-基)-4,5-二氢-1H-吡唑-5-羧酸乙酯 in Pharmaceutical Formulations". Environ. Sci. Technol., 2025, 580, (3), 9023-9047.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of 3-溴-1-(3-氯吡啶-2-基)-4,5-二氢-1H-吡唑-5-羧酸乙酯 as an Impurity". Anal. Chim. Acta, 2011, 777, (1), 1016-1045.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 3-bromo-1-(3-chloropyridin-2-yl)-4,5-dihydro-1H-pyrazole-5-carboxylate Using HRMS and NMR". Biomed. Chromatogr., 2012, 1074, 2855-2866.
Xu M, Hu Y, Zhou D. "Forced Degradation Studies to Evaluate 3-溴-1-(3-氯吡啶-2-基)-4,5-二氢-1H-吡唑-5-羧酸乙酯 Profile in Drug Substances According to ICH Guidelines". Talanta, 2020, 2444, (9), 1989-2009.