发明人唐晓军,徐明华,罗永刚. "Method for the Synthesis of Cefoperazone Impurity N11" [P]. 中国发明专利, 专利号 CN 117299985 A, 授权公告日 2019-09-06.
Davis P L, Chen K W, Johnson M A. "A Process for Preparing High-Purity Cefoperazone Impurity N11" [P]. US Patent, US 10901320 B2, 2015-03-20.
参考文献 Literature
Yang F, Sun W, Liu J. "Development and Validation of an LC-MS/MS Method for the Determination of 头孢哌酮杂质N11 in Pharmaceutical Formulations". J. Pharm. Biomed. Anal., 2013, 127, (3), 3526-3549.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of 头孢哌酮杂质N11 as an Impurity". Chromatographia, 2015, 595, 9283-9293.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of Cefoperazone Impurity N11 Using HRMS and NMR". Sci. Total Environ., 2014, 749, (3), 2626-2649.
O'Brien K, Kennedy M L. "Forced Degradation Studies to Evaluate 头孢哌酮杂质N11 Profile in Drug Substances According to ICH Guidelines". J. Nat. Prod., 2017, 1817, 2245-2253.