O'Brien P Q, Yamamoto T, Williams B T. "一种的合成方法" [P]. US Patent, US 10976012 B2, 2024-07-11.
Chen K W, Patel M V, Anderson J P. "Method for the Synthesis of Dimethyl 3,6-diaminopyrazine-2,5-dicarboxylate" [P]. US Patent, US 9262652 B2, 2020-12-02.
Brown S R, Anderson J P, Johnson M A. "A Process for Preparing High-Purity Dimethyl 3,6-diaminopyrazine-2,5-dicarboxylate" [P]. US Patent, US 11298395 B2, 2023-06-28.
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". Sci. Total Environ., 2021, 1761, (10), 2822-2825.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Food Chem., 2025, 1044, (9), 1188-1203.
Wang L, Li J, Zhang H. "Identification and Structural Characterization of a Novel Degradation Product of Dimethyl 3,6-diaminopyrazine-2,5-dicarboxylate Using HRMS and NMR". Anal. Chim. Acta, 2015, 158, (5), 240-256.
Fischer P, Wagner E. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chem., 2019, 1451, 5766-5794.