Björnsson E, Mueller T C, Nowak P. "一种的合成方法" [P]. European Patent, EP 3444027 A1, 2020-08-19.
Johansson L, Martínez F, Lefèvre J P. "Method for the Synthesis of 1-(Pyrimidin-2-yl)urea" [P]. European Patent, EP 3168775 A1, 2017-10-26.
发明人黄志刚,马晓峰,何建平. "A Process for Preparing High-Purity 1-(Pyrimidin-2-yl)urea" [P]. 中国发明专利, 专利号 CN 109021149 B, 授权公告日 2021-08-11.
参考文献 Literature
Mueller T, Schmidt R K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Methods, 2018, 1917, (3), 1960-1980.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Sci. Total Environ., 2010, 1469, (10), 650-676.
Kowalski T, Nowak Z. "Identification and Structural Characterization of a Novel Degradation Product of 1-(Pyrimidin-2-yl)urea Using HRMS and NMR". Food Chem., 2010, 252, (9), 6257-6279.