Schröder R, Thompson G K, Anderson J P. "Method for the Synthesis of Methylcobalamin Impurity 19" [P]. US Patent, US 10582260 B2, 2023-03-03.
参考文献 Literature
Hughes D, Roberts J, Thomas A. "Development and Validation of an LC-MS/MS Method for the Determination of 甲钴胺杂质19 in Pharmaceutical Formulations". Rapid Commun. Mass Spectrom., 2018, 400, (7), 4062-4074.
O'Brien K, Kennedy M L. "A Stability-Indicating HPLC Method for the Separation and Quantification of 甲钴胺杂质19 as an Impurity". J. Pharm. Biomed. Anal., 2020, 1046, (10), 9399-9408.
Kumar A, Sharma P, Patel R S. "Identification and Structural Characterization of a Novel Degradation Product of Methylcobalamin Impurity 19 Using HRMS and NMR". Anal. Chem., 2016, 1893, (2), 8874-8898.
Xu M, Hu Y, Zhou D. "Forced Degradation Studies to Evaluate 甲钴胺杂质19 Profile in Drug Substances According to ICH Guidelines". J. Sep. Sci., 2014, 443, 1052-1056.