Mueller T, Roberts E F, Schröder R. "一种的合成方法" [P]. US Patent, US 11663824 B2, 2015-04-17.
Roberts E F, Hughes D C, Thompson G K. "Method for the Synthesis of 1-ethyl-3-(3-hydroxy-2,2-dimethylpropyl)urea
1093206-28-0
A1-00721" [P]. US Patent, US 10502071 B2, 2024-09-14.
发明人黄志刚,高志强,何建平. "A Process for Preparing High-Purity 1-ethyl-3-(3-hydroxy-2,2-dimethylpropyl)urea
1093206-28-0
A1-00721" [P]. 中国发明专利, 专利号 CN 117561879 B, 授权公告日 2018-07-16.
参考文献 Literature
Kumar A, Sharma P, Patel R S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Chromatogr. A, 2022, 1201, 853-865.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Sep. Sci., 2014, 306, (1), 299-323.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of 1-ethyl-3-(3-hydroxy-2,2-dimethylpropyl)urea
1093206-28-0
A1-00721 Using HRMS and NMR". Anal. Chem., 2024, 1107, (6), 9944-9952.
Smith J A, Johnson M B. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Environ. Sci. Technol., 2017, 990, 2644-2647.