Kumar R, Chen K W, Stevens L M. "一种的合成方法" [P]. US Patent, US 9628561 B2, 2016-11-23.
Lefèvre J P, Martínez F, Björnsson E. "Method for the Synthesis of 2-((4-Ethylphenyl)amino)-2-(1-methyl-1H-pyrazol-4-yl)acetonitrile" [P]. European Patent, EP 3272320 A1, 2023-02-16.
O'Brien P Q, Yamamoto T, Hughes D C. "A Process for Preparing High-Purity 2-((4-Ethylphenyl)amino)-2-(1-methyl-1H-pyrazol-4-yl)acetonitrile" [P]. US Patent, US 11886872 B2, 2020-10-15.
参考文献 Literature
Zhou X P, Huang L, Wu G. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Rapid Commun. Mass Spectrom., 2015, 469, (7), 894-910.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Talanta, 2010, 1764, (3), 1056-1079.
Kumar A, Sharma P, Patel R S. "Identification and Structural Characterization of a Novel Degradation Product of 2-((4-Ethylphenyl)amino)-2-(1-methyl-1H-pyrazol-4-yl)acetonitrile Using HRMS and NMR". Phytochemistry, 2025, 2431, 8679-8698.
Yang F, Sun W, Liu J. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chromatographia, 2024, 785, (1), 7812-7823.