O'Brien P Q, Park J H, Yamamoto T. "Method for the Synthesis of 6-Ethylpyrazine-2-carboxamide" [P]. US Patent, US 9435548 B2, 2019-03-09.
参考文献 Literature
Garcia M, Rodriguez P. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Sep. Sci., 2015, 653, (6), 5887-5901.
Zhou X P, Huang L, Wu G. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Sci. Total Environ., 2019, 2477, 3128-3153.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of 6-Ethylpyrazine-2-carboxamide Using HRMS and NMR". J. Pharm. Biomed. Anal., 2015, 1337, (2), 4681-4693.
Wang L, Li J, Zhang H. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chim. Acta, 2011, 2237, (5), 5149-5172.