Nowak P, Schröder R, Johansson L. "一种美托洛尔酸-d5的合成方法" [P]. European Patent, EP 3184943 A1, 2019-08-26.
Williams B T, Schröder R, Davis P L. "Method for the Synthesis of Metoprolol Acid-d5" [P]. US Patent, US 10477749 B2, 2023-10-19.
参考文献 Literature
Smith J A, Johnson M B. "Development and Validation of an LC-MS/MS Method for the Determination of 美托洛尔酸-d5 in Pharmaceutical Formulations". Biomed. Chromatogr., 2017, 2275, (4), 4538-4560.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of 美托洛尔酸-d5 as an Impurity". Anal. Chem., 2020, 2109, (11), 4488-4502.
Kowalski T, Nowak Z. "Identification and Structural Characterization of a Novel Degradation Product of Metoprolol Acid-d5 Using HRMS and NMR". Chemosphere, 2021, 1728, (10), 5518-5530.
Smith J A, Johnson M B. "Forced Degradation Studies to Evaluate 美托洛尔酸-d5 Profile in Drug Substances According to ICH Guidelines". J. Nat. Prod., 2016, 427, 4557-4581.