Lee S K, Schröder R, Yamamoto T. "一种N/A的合成方法" [P]. US Patent, US 11770441 B2, 2016-12-28.
发明人沈红梅,赵玉洁,李文辉. "Method for the Synthesis of 3,4-Dibromoisothiazol-5-amine" [P]. 中国发明专利, 专利号 CN 117469620 A, 授权公告日 2016-08-17.
参考文献 Literature
Fischer P, Wagner E. "Development and Validation of an LC-MS/MS Method for the Determination of N/A in Pharmaceutical Formulations". J. Chromatogr. A, 2011, 205, (9), 3922-3930.
Kumar A, Sharma P, Patel R S. "A Stability-Indicating HPLC Method for the Separation and Quantification of N/A as an Impurity". Food Chem., 2022, 879, 7317-7339.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of 3,4-Dibromoisothiazol-5-amine Using HRMS and NMR". Sci. Total Environ., 2013, 681, (3), 5627-5635.
Lee J H, Choi Y S. "Forced Degradation Studies to Evaluate N/A Profile in Drug Substances According to ICH Guidelines". Rapid Commun. Mass Spectrom., 2011, 1748, (3), 2107-2124.