Schröder R, Fischer A B, O'Brien P Q. "Method for the Synthesis of Methyl 3-bromo-6-chloro-5-(dimethylamino)pyrazine-2-carboxylate" [P]. US Patent, US 9656894 B2, 2015-12-10.
Chen K W, Williams B T, Thompson G K. "A Process for Preparing High-Purity Methyl 3-bromo-6-chloro-5-(dimethylamino)pyrazine-2-carboxylate" [P]. US Patent, US 9251586 B2, 2018-03-04.
参考文献 Literature
Zhang Y, Li Q, Chen T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Environ. Sci. Technol., 2018, 1244, (6), 7584-7613.
Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Food Chem., 2021, 636, 9734-9740.
Xu M, Hu Y, Zhou D. "Identification and Structural Characterization of a Novel Degradation Product of Methyl 3-bromo-6-chloro-5-(dimethylamino)pyrazine-2-carboxylate Using HRMS and NMR". Anal. Chim. Acta, 2020, 1940, 3582-3585.
Yang F, Sun W, Liu J. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Sep. Sci., 2012, 260, (6), 953-965.