Mueller T C, Lefèvre J P, Rossi M. "Method for the Synthesis of 1-Ethyl-1-(4-hydroxyphenyl)-3-(2-oxoethyl)urea" [P]. European Patent, EP 3155957 A1, 2018-12-07.
参考文献 Literature
Zhang Y, Li Q, Chen T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Pharm. Biomed. Anal., 2012, 296, (3), 2277-2294.
Zhou X P, Huang L, Wu G. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chromatographia, 2011, 553, (8), 1581-1595.
Kumar A, Sharma P, Patel R S. "Identification and Structural Characterization of a Novel Degradation Product of 1-Ethyl-1-(4-hydroxyphenyl)-3-(2-oxoethyl)urea Using HRMS and NMR". Chemosphere, 2020, 750, (10), 1669-1691.
Smith J A, Johnson M B. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Methods, 2016, 1723, (12), 8655-8665.