发明人孙丽萍,王建平,黄志刚. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 110589241 A, 授权公告日 2020-05-15.
O'Brien P Q, Roberts E F, Brown S R. "Method for the Synthesis of 1-Ethyl-3-((5-(thiophene-2-carbonyl)thiophen-2-yl)methyl)urea" [P]. US Patent, US 10999574 B2, 2022-11-15.
发明人沈红梅,徐明华,何建平. "A Process for Preparing High-Purity 1-Ethyl-3-((5-(thiophene-2-carbonyl)thiophen-2-yl)methyl)urea" [P]. 中国发明专利, 专利号 CN 116016916 B, 授权公告日 2015-04-14.
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". J. Nat. Prod., 2018, 1914, (4), 5302-5330.
Xu M, Hu Y, Zhou D. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Biomed. Chromatogr., 2015, 1153, (12), 6213-6218.
Hughes D, Roberts J, Thomas A. "Identification and Structural Characterization of a Novel Degradation Product of 1-Ethyl-3-((5-(thiophene-2-carbonyl)thiophen-2-yl)methyl)urea Using HRMS and NMR". J. Sep. Sci., 2011, 482, (10), 98-102.
Smith J A, Johnson M B. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Agric. Food Chem., 2018, 1348, 2494-2520.