发明人高志强,马晓峰,林芳. "Method for the Synthesis of Sitagliptin Impurity 93" [P]. 中国发明专利, 专利号 CN 108895528 A, 授权公告日 2017-07-12.
参考文献 Literature
O'Brien K, Kennedy M L. "Development and Validation of an LC-MS/MS Method for the Determination of 西格列汀杂质93 in Pharmaceutical Formulations". Food Chem., 2014, 1823, (4), 2451-2467.
Mueller T, Schmidt R K. "A Stability-Indicating HPLC Method for the Separation and Quantification of 西格列汀杂质93 as an Impurity". Anal. Chim. Acta, 2012, 1545, 706-720.
Kim S H, Park J Y. "Identification and Structural Characterization of a Novel Degradation Product of Sitagliptin Impurity 93 Using HRMS and NMR". J. Chromatogr. A, 2023, 417, 5428-5444.
Chen X Y, Liu M, Zhao W Q. "Forced Degradation Studies to Evaluate 西格列汀杂质93 Profile in Drug Substances According to ICH Guidelines". J. Agric. Food Chem., 2021, 181, (1), 7906-7910.