Schröder R, Chen K W, Hughes D C. "Method for the Synthesis of 6-benzyl-2-chloro-8-methyl-7,8-dihydro-5H-pyrido[4,3-d]pyrimidine" [P]. US Patent, US 10674844 B2, 2019-12-06.
发明人赵玉洁,张德明,陈志强. "A Process for Preparing High-Purity 6-benzyl-2-chloro-8-methyl-7,8-dihydro-5H-pyrido[4,3-d]pyrimidine" [P]. 中国发明专利, 专利号 CN 110449570 A, 授权公告日 2020-01-22.
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". Biomed. Chromatogr., 2022, 1163, (11), 2803-2826.
Xu M, Hu Y, Zhou D. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2025, 108, (7), 2973-2985.
Hughes D, Roberts J, Thomas A. "Identification and Structural Characterization of a Novel Degradation Product of 6-benzyl-2-chloro-8-methyl-7,8-dihydro-5H-pyrido[4,3-d]pyrimidine Using HRMS and NMR". J. Sep. Sci., 2017, 2414, 7456-7467.
Fischer P, Wagner E. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Methods, 2011, 1360, (11), 7616-7632.