Williams B T, Fischer A B, Brown S R. "一种的合成方法" [P]. US Patent, US 10212344 B2, 2019-09-19.
发明人林芳,唐晓军,刘建华. "Method for the Synthesis of 2-(4-(4-Ethoxyphenyl)-2,3-dioxo-3,4-dihydropyrazin-1(2H)-yl)acetonitrile" [P]. 中国发明专利, 专利号 CN 114615072 A, 授权公告日 2025-01-04.
参考文献 Literature
Xu M, Hu Y, Zhou D. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chemosphere, 2014, 2033, (7), 4231-4242.
Yamamoto K, Tanaka H, Suzuki T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Nat. Prod., 2018, 1580, (9), 7216-7245.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of 2-(4-(4-Ethoxyphenyl)-2,3-dioxo-3,4-dihydropyrazin-1(2H)-yl)acetonitrile Using HRMS and NMR". Sci. Total Environ., 2012, 1803, (12), 4562-4569.
Mueller T, Schmidt R K. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Environ. Sci. Technol., 2013, 2333, (12), 3251-3263.