发明人胡光,冯建国,马晓峰. "Method for the Synthesis of 1-[(4-aminophenyl)methyl]-3-ethylurea" [P]. 中国发明专利, 专利号 CN 115300726 B, 授权公告日 2017-04-12.
发明人钱学锋,沈红梅,罗永刚. "A Process for Preparing High-Purity 1-[(4-aminophenyl)methyl]-3-ethylurea" [P]. 中国发明专利, 专利号 CN 113167784 B, 授权公告日 2018-03-06.
参考文献 Literature
Brown R C, Davis S M. "Development and Validation of an LC-MS/MS Method for the Determination of 1-[(4-aminophenyl)methyl]-3-ethylurea in Pharmaceutical Formulations". Sci. Total Environ., 2010, 1522, (7), 5937-5941.
Hughes D, Roberts J, Thomas A. "A Stability-Indicating HPLC Method for the Separation and Quantification of 1-[(4-aminophenyl)methyl]-3-ethylurea as an Impurity". Rapid Commun. Mass Spectrom., 2014, 1661, (9), 7675-7703.
Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of 1-[(4-aminophenyl)methyl]-3-ethylurea Using HRMS and NMR". J. Chromatogr. A, 2018, 212, (1), 4625-4637.
Mueller T, Schmidt R K. "Forced Degradation Studies to Evaluate 1-[(4-aminophenyl)methyl]-3-ethylurea Profile in Drug Substances According to ICH Guidelines". Chemosphere, 2023, 1539, 9062-9073.