Björnsson E, Kowalski A, Nielsen H. "一种5-Chloro-2-methoxynicotinic acid的合成方法" [P]. European Patent, EP 3245026 A1, 2020-09-21.
Kumar R, Klinger H, Thompson G K. "Method for the Synthesis of 5-chloranyl-2-methoxy-pyridine-3-carboxylic acid
5-chloro-2-methoxy-3-pyridinecarboxylic acid
54916-65-3
A830407" [P]. US Patent, US 11545142 B2, 2024-12-03.
参考文献 Literature
O'Brien K, Kennedy M L. "Development and Validation of an LC-MS/MS Method for the Determination of 5-Chloro-2-methoxynicotinic acid in Pharmaceutical Formulations". Sci. Total Environ., 2013, 2098, 9656-9664.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of 5-Chloro-2-methoxynicotinic acid as an Impurity". J. Pharm. Biomed. Anal., 2018, 317, (8), 1241-1255.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of 5-chloranyl-2-methoxy-pyridine-3-carboxylic acid
5-chloro-2-methoxy-3-pyridinecarboxylic acid
54916-65-3
A830407 Using HRMS and NMR". J. Nat. Prod., 2010, 2271, (9), 3821-3826.
Chen X Y, Liu M, Zhao W Q. "Forced Degradation Studies to Evaluate 5-Chloro-2-methoxynicotinic acid Profile in Drug Substances According to ICH Guidelines". J. Sep. Sci., 2023, 84, 8852-8872.