O'Brien P Q, Klinger H, Mueller T. "Method for the Synthesis of 2-Amino-3-cyano-6-methylpyrazine 1-oxide" [P]. US Patent, US 11635567 B2, 2018-02-15.
参考文献 Literature
Kowalski T, Nowak Z. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Agric. Food Chem., 2021, 1489, 3547-3564.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Sep. Sci., 2010, 516, (1), 5175-5203.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of 2-Amino-3-cyano-6-methylpyrazine 1-oxide Using HRMS and NMR". J. Pharm. Biomed. Anal., 2023, 331, (2), 4882-4912.
Martinez C, Lopez D R. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Talanta, 2025, 289, 2115-2143.