Davis P L, Fischer A B, Anderson J P. "Method for the Synthesis of Amlodipine Besylate EP Impurity D" [P]. US Patent, US 9531687 B2, 2025-09-05.
Anderson J P, Patel M V, Park J H. "A Process for Preparing High-Purity Amlodipine Besylate EP Impurity D" [P]. US Patent, US 10260964 B2, 2017-12-25.
参考文献 Literature
Mueller T, Schmidt R K. "Development and Validation of an LC-MS/MS Method for the Determination of 苯磺酸氨氯地平EP杂质D in Pharmaceutical Formulations". Anal. Chim. Acta, 2018, 1372, (4), 867-872.
Brown R C, Davis S M. "A Stability-Indicating HPLC Method for the Separation and Quantification of 苯磺酸氨氯地平EP杂质D as an Impurity". Chemosphere, 2011, 801, (10), 2809-2822.
Wang L, Li J, Zhang H. "Identification and Structural Characterization of a Novel Degradation Product of Amlodipine Besylate EP Impurity D Using HRMS and NMR". Anal. Methods, 2022, 191, (5), 3186-3197.