Nielsen H, Björnsson E, Lefèvre J P. "一种的合成方法" [P]. European Patent, EP 3260957 A1, 2017-07-21.
Fischer A B, Kumar R, Roberts E F. "Method for the Synthesis of N-[[trans-4-[[(4-Amino-6-chloro-2-pyrimidinyl)amino]methyl]cyclohexyl]methyl]-N-[3-[cyclohexyl[(1,1-dimethylethoxy)carbonyl]amino]propyl]carbamic acid 1,1-dimethylethyl ester" [P]. US Patent, US 10086456 B2, 2018-05-11.
Lefèvre J P, Schröder R, Sørensen M. "A Process for Preparing High-Purity N-[[trans-4-[[(4-Amino-6-chloro-2-pyrimidinyl)amino]methyl]cyclohexyl]methyl]-N-[3-[cyclohexyl[(1,1-dimethylethoxy)carbonyl]amino]propyl]carbamic acid 1,1-dimethylethyl ester" [P]. European Patent, EP 3216376 A1, 2021-11-23.
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". Anal. Chim. Acta, 2017, 2393, 1597-1602.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Biomed. Chromatogr., 2020, 718, (4), 7792-7800.