Brown S R, O'Brien P Q, Johnson M A. "Method for the Synthesis of Ceftriaxone Impurity 41" [P]. US Patent, US 11738286 B2, 2018-01-11.
Thompson G K, Chen K W, Yamamoto T. "A Process for Preparing High-Purity Ceftriaxone Impurity 41" [P]. US Patent, US 11762062 B2, 2024-10-17.
参考文献 Literature
Mueller T, Schmidt R K. "Development and Validation of an LC-MS/MS Method for the Determination of 头孢曲松钠杂质41 in Pharmaceutical Formulations". Anal. Methods, 2013, 1170, 269-272.
Xu M, Hu Y, Zhou D. "A Stability-Indicating HPLC Method for the Separation and Quantification of 头孢曲松钠杂质41 as an Impurity". J. Sep. Sci., 2013, 2218, (1), 6556-6586.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of Ceftriaxone Impurity 41 Using HRMS and NMR". Molecules, 2016, 2409, 6687-6707.