Martínez F, Schröder R, Björnsson E. "Method for the Synthesis of 2-(6-Cyano-4-methoxypyridin-2-yl)acetic acid" [P]. European Patent, EP 3813850 A1, 2018-12-03.
Schröder R, Rossi M, Martínez F. "A Process for Preparing High-Purity 2-(6-Cyano-4-methoxypyridin-2-yl)acetic acid" [P]. European Patent, EP 3778401 A1, 2019-12-15.
参考文献 Literature
Yang F, Sun W, Liu J. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Environ. Sci. Technol., 2010, 1671, (4), 839-846.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2024, 1091, (1), 7839-7851.
Hughes D, Roberts J, Thomas A. "Identification and Structural Characterization of a Novel Degradation Product of 2-(6-Cyano-4-methoxypyridin-2-yl)acetic acid Using HRMS and NMR". Food Chem., 2020, 2087, 297-324.
Kowalski T, Nowak Z. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chromatographia, 2011, 2196, (10), 655-669.