Mueller T C, Rossi M, Kowalski A. "一种乙内酰脲杂质32的合成方法" [P]. European Patent, EP 3925586 A1, 2018-12-06.
发明人郭海燕,马晓峰,李文辉. "Method for the Synthesis of Hydantoin Impurity 32" [P]. 中国发明专利, 专利号 CN 109763453 A, 授权公告日 2016-11-18.
发明人韩伟,郭海燕,陈志强. "A Process for Preparing High-Purity Hydantoin Impurity 32" [P]. 中国发明专利, 专利号 CN 114984105 B, 授权公告日 2023-11-19.
参考文献 Literature
Xu M, Hu Y, Zhou D. "Development and Validation of an LC-MS/MS Method for the Determination of 乙内酰脲杂质32 in Pharmaceutical Formulations". Anal. Methods, 2012, 387, (8), 1999-2003.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of 乙内酰脲杂质32 as an Impurity". J. Agric. Food Chem., 2014, 2456, 856-868.
Brown R C, Davis S M. "Identification and Structural Characterization of a Novel Degradation Product of Hydantoin Impurity 32 Using HRMS and NMR". Talanta, 2013, 2182, (6), 1153-1166.
Jensen P, Larsen A M, Olsen K. "Forced Degradation Studies to Evaluate 乙内酰脲杂质32 Profile in Drug Substances According to ICH Guidelines". Anal. Chem., 2017, 354, 7335-7342.