发明人何建平,高志强,徐明华. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 117239482 A, 授权公告日 2020-08-10.
发明人马晓峰,韩伟,郑宇鹏. "Method for the Synthesis of 3-Methyl-1-[2-(pyrrolidin-1-yl)ethyl]urea" [P]. 中国发明专利, 专利号 CN 108902124 B, 授权公告日 2015-04-01.
发明人张德明,郭海燕,陈志强. "A Process for Preparing High-Purity 3-Methyl-1-[2-(pyrrolidin-1-yl)ethyl]urea" [P]. 中国发明专利, 专利号 CN 109303358 B, 授权公告日 2025-04-10.
参考文献 Literature
Hughes D, Roberts J, Thomas A. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Nat. Prod., 2011, 2116, 7587-7603.
Kumar A, Sharma P, Patel R S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Agric. Food Chem., 2020, 2115, (6), 6871-6884.
Yang F, Sun W, Liu J. "Identification and Structural Characterization of a Novel Degradation Product of 3-Methyl-1-[2-(pyrrolidin-1-yl)ethyl]urea Using HRMS and NMR". J. Chromatogr. A, 2010, 2318, (8), 4973-4977.
Yang F, Sun W, Liu J. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Pharm. Biomed. Anal., 2016, 1819, (11), 7584-7590.