发明人刘建华,冯建国,李文辉. "Method for the Synthesis of Pralatrexate Impurity 2" [P]. 中国发明专利, 专利号 CN 114554192 B, 授权公告日 2020-10-18.
Jørgensen K, Nielsen H, Martínez F. "A Process for Preparing High-Purity Pralatrexate Impurity 2" [P]. European Patent, EP 3266333 A1, 2017-01-20.
参考文献 Literature
Xu M, Hu Y, Zhou D. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Phytochemistry, 2020, 480, (11), 6158-6173.
Hughes D, Roberts J, Thomas A. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Molecules, 2022, 1930, 63-79.
Zhang Y, Li Q, Chen T. "Identification and Structural Characterization of a Novel Degradation Product of Pralatrexate Impurity 2 Using HRMS and NMR". Anal. Chem., 2013, 999, 1312-1331.