Stevens L M, Schröder R, Kumar R. "一种的合成方法" [P]. US Patent, US 10038511 B2, 2022-07-13.
发明人黄志刚,孙丽萍,沈红梅. "Method for the Synthesis of 3-Ethoxy-4-nitro-1H-pyrazole-5-carboxylic acid" [P]. 中国发明专利, 专利号 CN 111233910 A, 授权公告日 2024-03-18.
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". Molecules, 2015, 2037, (8), 5010-5021.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Food Chem., 2023, 318, (12), 9637-9661.
Kumar A, Sharma P, Patel R S. "Identification and Structural Characterization of a Novel Degradation Product of 3-Ethoxy-4-nitro-1H-pyrazole-5-carboxylic acid Using HRMS and NMR". J. Sep. Sci., 2021, 718, 2633-2636.
Wang L, Li J, Zhang H. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Rapid Commun. Mass Spectrom., 2010, 1191, (3), 2626-2651.