Chen K W, Stevens L M, Roberts E F. "一种的合成方法" [P]. US Patent, US 9223113 B2, 2024-09-23.
Yamamoto T, Fischer A B, Patel M V. "Method for the Synthesis of Ethyl 3,5,6-trimethylpyrazine-2-carboxylate" [P]. US Patent, US 10319417 B2, 2019-09-07.
发明人冯建国,胡光,李文辉. "A Process for Preparing High-Purity Ethyl 3,5,6-trimethylpyrazine-2-carboxylate" [P]. 中国发明专利, 专利号 CN 110881858 B, 授权公告日 2023-10-21.
参考文献 Literature
Fischer P, Wagner E. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chim. Acta, 2025, 1691, 8266-8285.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Nat. Prod., 2015, 1512, (2), 6160-6182.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 3,5,6-trimethylpyrazine-2-carboxylate Using HRMS and NMR". J. Agric. Food Chem., 2016, 99, (2), 87-96.
Hughes D, Roberts J, Thomas A. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Methods, 2021, 2389, (5), 8014-8028.