发明人赵玉洁,黄志刚,杨光. "Method for the Synthesis of Ethyl 2-ethoxymethylene-4,4-difluoro-4-chloroacetoacetate" [P]. 中国发明专利, 专利号 CN 114947255 B, 授权公告日 2016-03-24.
参考文献 Literature
O'Brien K, Kennedy M L. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Rapid Commun. Mass Spectrom., 2020, 1173, (8), 432-446.
Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Molecules, 2022, 1538, (3), 3877-3900.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 2-ethoxymethylene-4,4-difluoro-4-chloroacetoacetate Using HRMS and NMR". Chromatographia, 2022, 1437, 1134-1157.
Chen X Y, Liu M, Zhao W Q. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Methods, 2010, 960, (2), 2611-2638.