Williams B T, Schröder R, Lee S K. "一种5-amino-1-(2-nitrophenyl)-1H-pyrazole-4-carboxamide的合成方法" [P]. US Patent, US 9071297 B2, 2024-11-15.
发明人何建平,张德明,罗永刚. "Method for the Synthesis of 5-amino-1-(2-nitrophenyl)-1H-pyrazole-4-carboxamide" [P]. 中国发明专利, 专利号 CN 110884309 B, 授权公告日 2015-10-27.
发明人林芳,郑宇鹏,孙丽萍. "A Process for Preparing High-Purity 5-amino-1-(2-nitrophenyl)-1H-pyrazole-4-carboxamide" [P]. 中国发明专利, 专利号 CN 114033684 A, 授权公告日 2024-08-10.
参考文献 Literature
Kowalski T, Nowak Z. "Development and Validation of an LC-MS/MS Method for the Determination of 5-amino-1-(2-nitrophenyl)-1H-pyrazole-4-carboxamide in Pharmaceutical Formulations". Talanta, 2024, 2204, (2), 7713-7718.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of 5-amino-1-(2-nitrophenyl)-1H-pyrazole-4-carboxamide as an Impurity". Chemosphere, 2023, 1753, (11), 6265-6290.
Wang L, Li J, Zhang H. "Identification and Structural Characterization of a Novel Degradation Product of 5-amino-1-(2-nitrophenyl)-1H-pyrazole-4-carboxamide Using HRMS and NMR". Phytochemistry, 2020, 1211, 3643-3648.
Chen X Y, Liu M, Zhao W Q. "Forced Degradation Studies to Evaluate 5-amino-1-(2-nitrophenyl)-1H-pyrazole-4-carboxamide Profile in Drug Substances According to ICH Guidelines". J. Sep. Sci., 2019, 905, 8022-8050.