发明人陈志强,何建平,马晓峰. "Method for the Synthesis of Vildagliptin Impurity 44" [P]. 中国发明专利, 专利号 CN 115503688 A, 授权公告日 2025-04-05.
发明人冯建国,王建平,郭海燕. "A Process for Preparing High-Purity Vildagliptin Impurity 44" [P]. 中国发明专利, 专利号 CN 110648667 A, 授权公告日 2015-01-14.
参考文献 Literature
Hughes D, Roberts J, Thomas A. "Development and Validation of an LC-MS/MS Method for the Determination of Vildagliptin Impurity44 in Pharmaceutical Formulations". J. Agric. Food Chem., 2012, 1986, (5), 1946-1951.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of Vildagliptin Impurity44 as an Impurity". Anal. Methods, 2025, 2401, 301-309.
Brown R C, Davis S M. "Identification and Structural Characterization of a Novel Degradation Product of Vildagliptin Impurity 44 Using HRMS and NMR". Food Chem., 2011, 315, (8), 2926-2936.
Smith J A, Johnson M B. "Forced Degradation Studies to Evaluate Vildagliptin Impurity44 Profile in Drug Substances According to ICH Guidelines". Molecules, 2012, 469, (9), 363-379.