Brown S R, O'Brien P Q, Kumar R. "Method for the Synthesis of Methyl 5-bromo-2-cyano-4-formylbenzoate" [P]. US Patent, US 11556665 B2, 2020-02-16.
Hughes D C, Chen K W, Patel M V. "A Process for Preparing High-Purity Methyl 5-bromo-2-cyano-4-formylbenzoate" [P]. US Patent, US 10669051 B2, 2016-01-13.
参考文献 Literature
Smith J A, Johnson M B. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chim. Acta, 2022, 2257, 5499-5520.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Chromatogr. A, 2018, 1395, 5120-5127.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of Methyl 5-bromo-2-cyano-4-formylbenzoate Using HRMS and NMR". Biomed. Chromatogr., 2011, 744, 961-986.
Martinez C, Lopez D R. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Sep. Sci., 2019, 685, (11), 852-864.