Mueller T, Lee S K, O'Brien P Q. "一种乙内酰脲杂质11的合成方法" [P]. US Patent, US 10323318 B2, 2016-08-22.
发明人张德明,徐明华,钱学锋. "Method for the Synthesis of Hydantoin Impurity 11" [P]. 中国发明专利, 专利号 CN 115035236 B, 授权公告日 2020-01-02.
Jørgensen K, Mueller T C, Martínez F. "A Process for Preparing High-Purity Hydantoin Impurity 11" [P]. European Patent, EP 3858385 A1, 2017-07-27.
参考文献 Literature
Wang L, Li J, Zhang H. "Development and Validation of an LC-MS/MS Method for the Determination of 乙内酰脲杂质11 in Pharmaceutical Formulations". J. Nat. Prod., 2014, 2061, (12), 9108-9128.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of 乙内酰脲杂质11 as an Impurity". Anal. Methods, 2018, 2463, 8878-8883.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of Hydantoin Impurity 11 Using HRMS and NMR". Biomed. Chromatogr., 2022, 856, 2370-2399.