Brown S R, Patel M V, Lee S K. "Method for the Synthesis of Cefamandole Nafate EP Impurity A" [P]. US Patent, US 10293736 B2, 2021-08-10.
发明人林芳,杨光,李文辉. "A Process for Preparing High-Purity Cefamandole Nafate EP Impurity A" [P]. 中国发明专利, 专利号 CN 110229884 A, 授权公告日 2015-03-07.
参考文献 Literature
Kim S H, Park J Y. "Development and Validation of an LC-MS/MS Method for the Determination of 头孢孟多杂质31 in Pharmaceutical Formulations". J. Chromatogr. A, 2017, 1411, (7), 7800-7812.
Kim S H, Park J Y. "A Stability-Indicating HPLC Method for the Separation and Quantification of 头孢孟多杂质31 as an Impurity". Molecules, 2018, 745, (1), 2331-2345.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of Cefamandole Nafate EP Impurity A Using HRMS and NMR". J. Sep. Sci., 2011, 439, (2), 9793-9800.
Wang L, Li J, Zhang H. "Forced Degradation Studies to Evaluate 头孢孟多杂质31 Profile in Drug Substances According to ICH Guidelines". Rapid Commun. Mass Spectrom., 2018, 632, (3), 6668-6690.