Nowak P, Björnsson E, Nielsen H. "Method for the Synthesis of 2-Amino-4-(tert-butyl)-5-(methylsulfonyl)thiophene-3-carbonitrile" [P]. European Patent, EP 3771402 A1, 2021-09-10.
Park J H, Stevens L M, Mueller T. "A Process for Preparing High-Purity 2-Amino-4-(tert-butyl)-5-(methylsulfonyl)thiophene-3-carbonitrile" [P]. US Patent, US 9982123 B2, 2021-10-17.
参考文献 Literature
Zhang Y, Li Q, Chen T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Talanta, 2017, 1459, (9), 2481-2488.
Hughes D, Roberts J, Thomas A. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Agric. Food Chem., 2025, 1901, (8), 2471-2494.
Zhou X P, Huang L, Wu G. "Identification and Structural Characterization of a Novel Degradation Product of 2-Amino-4-(tert-butyl)-5-(methylsulfonyl)thiophene-3-carbonitrile Using HRMS and NMR". J. Sep. Sci., 2025, 788, (8), 1893-1921.
Kumar A, Sharma P, Patel R S. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chem., 2017, 2313, 717-735.