Klinger H, Lee S K, Williams B T. "一种的合成方法" [P]. US Patent, US 10193364 B2, 2021-08-07.
Björnsson E, Martínez F, Nielsen H. "Method for the Synthesis of 5-methyl-1H-pyrrolo[2,3-b]pyridine-4-carboxylic acid" [P]. European Patent, EP 3134698 A1, 2019-09-24.
Klinger H, O'Brien P Q, Patel M V. "A Process for Preparing High-Purity 5-methyl-1H-pyrrolo[2,3-b]pyridine-4-carboxylic acid" [P]. US Patent, US 11888076 B2, 2025-02-22.
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". Rapid Commun. Mass Spectrom., 2018, 2361, 391-406.
Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Pharm. Biomed. Anal., 2020, 1937, 4895-4899.
Brown R C, Davis S M. "Identification and Structural Characterization of a Novel Degradation Product of 5-methyl-1H-pyrrolo[2,3-b]pyridine-4-carboxylic acid Using HRMS and NMR". Food Chem., 2014, 207, (4), 6532-6562.
Lee J H, Choi Y S. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chromatographia, 2011, 2146, 5898-5904.