Fischer A B, Williams B T, Anderson J P. "一种头孢曲松钠EP杂质E的合成方法" [P]. US Patent, US 11397270 B2, 2019-05-23.
Johansson L, Rossi M, Mueller T C. "Method for the Synthesis of Ceftriaxone EP Impurity E" [P]. European Patent, EP 3494592 A1, 2019-06-23.
Lefèvre J P, Nielsen H, Schröder R. "A Process for Preparing High-Purity Ceftriaxone EP Impurity E" [P]. European Patent, EP 3991117 A1, 2021-02-11.
参考文献 Literature
Yamamoto K, Tanaka H, Suzuki T. "Development and Validation of an LC-MS/MS Method for the Determination of 头孢曲松钠EP杂质E in Pharmaceutical Formulations". Chromatographia, 2023, 247, 7129-7132.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of 头孢曲松钠EP杂质E as an Impurity". Anal. Methods, 2024, 2096, 9996-10023.
Hughes D, Roberts J, Thomas A. "Identification and Structural Characterization of a Novel Degradation Product of Ceftriaxone EP Impurity E Using HRMS and NMR". Biomed. Chromatogr., 2012, 2274, (5), 9134-9138.
Yang F, Sun W, Liu J. "Forced Degradation Studies to Evaluate 头孢曲松钠EP杂质E Profile in Drug Substances According to ICH Guidelines". J. Chromatogr. A, 2013, 940, (10), 1910-1926.