Schröder R, Mueller T C, Lefèvre J P. "一种的合成方法" [P]. European Patent, EP 3767638 A1, 2019-07-01.
发明人孙丽萍,王建平,郭海燕. "Method for the Synthesis of 4-Chloro-5,6,7-trimethylpyrido[2,3-d]pyrimidine" [P]. 中国发明专利, 专利号 CN 116729125 B, 授权公告日 2025-08-09.
发明人刘建华,高志强,孙丽萍. "A Process for Preparing High-Purity 4-Chloro-5,6,7-trimethylpyrido[2,3-d]pyrimidine" [P]. 中国发明专利, 专利号 CN 115502214 B, 授权公告日 2020-03-02.
参考文献 Literature
Lee J H, Choi Y S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Food Chem., 2017, 594, (11), 7642-7657.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chim. Acta, 2012, 539, (6), 1460-1475.
Xu M, Hu Y, Zhou D. "Identification and Structural Characterization of a Novel Degradation Product of 4-Chloro-5,6,7-trimethylpyrido[2,3-d]pyrimidine Using HRMS and NMR". Sci. Total Environ., 2011, 1688, 9402-9409.
Garcia M, Rodriguez P. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Methods, 2025, 2124, (11), 7793-7799.