Kumar R, Roberts E F, Mueller T. "Method for the Synthesis of 3-Chloro-6,7-dimethoxyquinoxaline-2-carboxylic acid" [P]. US Patent, US 9163854 B2, 2024-11-08.
Davis P L, Yamamoto T, Hughes D C. "A Process for Preparing High-Purity 3-Chloro-6,7-dimethoxyquinoxaline-2-carboxylic acid" [P]. US Patent, US 10165407 B2, 2021-12-22.
参考文献 Literature
O'Brien K, Kennedy M L. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Agric. Food Chem., 2021, 892, (11), 3036-3046.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chromatographia, 2010, 1550, (2), 916-944.
Kowalski T, Nowak Z. "Identification and Structural Characterization of a Novel Degradation Product of 3-Chloro-6,7-dimethoxyquinoxaline-2-carboxylic acid Using HRMS and NMR". Anal. Chem., 2010, 969, (10), 609-632.
Kowalski T, Nowak Z. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Phytochemistry, 2022, 1613, (1), 5578-5582.