发明人马晓峰,李文辉,胡光. "一种头孢吡肟杂质23的合成方法" [P]. 中国发明专利, 专利号 CN 115491441 A, 授权公告日 2025-03-09.
发明人李文辉,杨光,刘建华. "Method for the Synthesis of Cefepime Dihydrochloride Monohydrate EP Impurity E" [P]. 中国发明专利, 专利号 CN 111563241 A, 授权公告日 2025-09-09.
参考文献 Literature
Wang L, Li J, Zhang H. "Development and Validation of an LC-MS/MS Method for the Determination of 头孢吡肟杂质23 in Pharmaceutical Formulations". J. Nat. Prod., 2018, 2453, (4), 5462-5481.
Xu M, Hu Y, Zhou D. "A Stability-Indicating HPLC Method for the Separation and Quantification of 头孢吡肟杂质23 as an Impurity". Sci. Total Environ., 2014, 2180, (4), 8911-8919.
Garcia M, Rodriguez P. "Identification and Structural Characterization of a Novel Degradation Product of Cefepime Dihydrochloride Monohydrate EP Impurity E Using HRMS and NMR". Molecules, 2025, 863, (9), 3668-3672.