发明人朱建伟,刘建华,孙丽萍. "一种维格列汀杂质44的合成方法" [P]. 中国发明专利, 专利号 CN 110827811 A, 授权公告日 2025-07-16.
发明人罗永刚,徐明华,钱学锋. "Method for the Synthesis of Vildagliptin Impurity 44" [P]. 中国发明专利, 专利号 CN 115520883 A, 授权公告日 2022-11-01.
参考文献 Literature
Garcia M, Rodriguez P. "Development and Validation of an LC-MS/MS Method for the Determination of 维格列汀杂质44 in Pharmaceutical Formulations". Food Chem., 2021, 1220, 4723-4733.
O'Brien K, Kennedy M L. "A Stability-Indicating HPLC Method for the Separation and Quantification of 维格列汀杂质44 as an Impurity". Environ. Sci. Technol., 2021, 1668, (8), 4435-4449.
Yang F, Sun W, Liu J. "Identification and Structural Characterization of a Novel Degradation Product of Vildagliptin Impurity 44 Using HRMS and NMR". J. Sep. Sci., 2010, 1695, 4388-4412.
Smith J A, Johnson M B. "Forced Degradation Studies to Evaluate 维格列汀杂质44 Profile in Drug Substances According to ICH Guidelines". Anal. Chem., 2019, 1283, 8121-8139.