Klinger H, Roberts E F, Thompson G K. "一种的合成方法" [P]. US Patent, US 9381449 B2, 2018-06-15.
Brown S R, Roberts E F, Chen K W. "Method for the Synthesis of 4-Ethyl-1-methyl-3-(2-methylfuran-3-yl)-1h-pyrazol-5-amine" [P]. US Patent, US 9124259 B2, 2024-09-20.
参考文献 Literature
Lee J H, Choi Y S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Sep. Sci., 2019, 1840, 9476-9503.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Food Chem., 2015, 254, 6366-6379.
Yang F, Sun W, Liu J. "Identification and Structural Characterization of a Novel Degradation Product of 4-Ethyl-1-methyl-3-(2-methylfuran-3-yl)-1h-pyrazol-5-amine Using HRMS and NMR". J. Chromatogr. A, 2021, 2346, (3), 1001-1005.
Wang L, Li J, Zhang H. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Pharm. Biomed. Anal., 2017, 2249, 6392-6409.