发明人马晓峰,胡光,钱学锋. "Method for the Synthesis of Methyl 2-(5-ethoxy-1-methyl-2,4-dioxo-1,4-dihydropyrido[2,3-d]pyrimidin-3(2H)-yl)acetate" [P]. 中国发明专利, 专利号 CN 113186575 A, 授权公告日 2025-01-06.
Kumar R, Mueller T, Schröder R. "A Process for Preparing High-Purity Methyl 2-(5-ethoxy-1-methyl-2,4-dioxo-1,4-dihydropyrido[2,3-d]pyrimidin-3(2H)-yl)acetate" [P]. US Patent, US 9865813 B2, 2020-08-04.
参考文献 Literature
O'Brien K, Kennedy M L. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Phytochemistry, 2019, 543, (1), 5141-5159.
Mueller T, Schmidt R K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Food Chem., 2017, 720, (8), 8949-8959.
Garcia M, Rodriguez P. "Identification and Structural Characterization of a Novel Degradation Product of Methyl 2-(5-ethoxy-1-methyl-2,4-dioxo-1,4-dihydropyrido[2,3-d]pyrimidin-3(2H)-yl)acetate Using HRMS and NMR". Chemosphere, 2016, 1025, (11), 498-524.
Zhou X P, Huang L, Wu G. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Biomed. Chromatogr., 2014, 431, (9), 1269-1280.