发明人赵玉洁,张德明,钱学锋. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 110364286 A, 授权公告日 2016-04-18.
Klinger H, Brown S R, Fischer A B. "Method for the Synthesis of Ethyl 5-acetyl-2-((3-chloroquinoxalin-2(1h)-ylidene)amino)-4-methylthiophene-3-carboxylate" [P]. US Patent, US 9388900 B2, 2015-04-25.
发明人胡光,高志强,周伟. "A Process for Preparing High-Purity Ethyl 5-acetyl-2-((3-chloroquinoxalin-2(1h)-ylidene)amino)-4-methylthiophene-3-carboxylate" [P]. 中国发明专利, 专利号 CN 114030604 A, 授权公告日 2024-08-15.
参考文献 Literature
Jensen P, Larsen A M, Olsen K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Nat. Prod., 2011, 597, 4029-4036.
Kumar A, Sharma P, Patel R S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Pharm. Biomed. Anal., 2015, 1730, (8), 6085-6104.
Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 5-acetyl-2-((3-chloroquinoxalin-2(1h)-ylidene)amino)-4-methylthiophene-3-carboxylate Using HRMS and NMR". Anal. Chem., 2021, 794, 9040-9068.
Yang F, Sun W, Liu J. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chim. Acta, 2016, 2253, (6), 2056-2070.