发明人郭海燕,胡光,徐明华. "Method for the Synthesis of Ethyl 5-amino-4-bromo-1-(pyridin-4-yl)-1H-pyrazole-3-carboxylate" [P]. 中国发明专利, 专利号 CN 117209793 A, 授权公告日 2016-02-26.
发明人沈红梅,郭海燕,唐晓军. "A Process for Preparing High-Purity Ethyl 5-amino-4-bromo-1-(pyridin-4-yl)-1H-pyrazole-3-carboxylate" [P]. 中国发明专利, 专利号 CN 115337582 A, 授权公告日 2015-07-08.
参考文献 Literature
Xu M, Hu Y, Zhou D. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Talanta, 2025, 2476, (6), 1776-1793.
Kumar A, Sharma P, Patel R S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2011, 367, (1), 3052-3056.
Garcia M, Rodriguez P. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 5-amino-4-bromo-1-(pyridin-4-yl)-1H-pyrazole-3-carboxylate Using HRMS and NMR". Chemosphere, 2017, 845, 559-585.