Lee S K, Patel M V, Thompson G K. "一种的合成方法" [P]. US Patent, US 11290471 B2, 2017-05-11.
发明人林芳,黄志刚,唐晓军. "Method for the Synthesis of Ethyl 5-amino-1-(5-ethyl-4-hydroxy-6-methylpyrimidin-2-yl)-1h-pyrazole-4-carboxylate" [P]. 中国发明专利, 专利号 CN 113952320 A, 授权公告日 2023-01-02.
参考文献 Literature
Yamamoto K, Tanaka H, Suzuki T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Food Chem., 2017, 208, (5), 6951-6972.
Xu M, Hu Y, Zhou D. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2010, 653, (12), 4545-4553.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 5-amino-1-(5-ethyl-4-hydroxy-6-methylpyrimidin-2-yl)-1h-pyrazole-4-carboxylate Using HRMS and NMR". Molecules, 2020, 226, (10), 2796-2822.
Wang L, Li J, Zhang H. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Sep. Sci., 2015, 1690, (8), 6048-6052.