发明人王建平,孙丽萍,冯建国. "Method for the Synthesis of Ethyl 2-(2-chloroacetamido)-4,5-dimethylthiophene-3-carboxylate" [P]. 中国发明专利, 专利号 CN 110527590 A, 授权公告日 2022-02-03.
发明人马晓峰,周伟,孙丽萍. "A Process for Preparing High-Purity Ethyl 2-(2-chloroacetamido)-4,5-dimethylthiophene-3-carboxylate" [P]. 中国发明专利, 专利号 CN 109321465 B, 授权公告日 2021-02-18.
参考文献 Literature
Smith J A, Johnson M B. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Sci. Total Environ., 2010, 1746, (1), 8458-8480.
Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Agric. Food Chem., 2014, 1567, 8051-8064.
Hughes D, Roberts J, Thomas A. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 2-(2-chloroacetamido)-4,5-dimethylthiophene-3-carboxylate Using HRMS and NMR". Anal. Chem., 2013, 296, (6), 1168-1190.