发明人陈志强,李文辉,徐明华. "Method for the Synthesis of 3-(2-Hydroxyethyl)-2,8-dimethyl-4H-pyrido[1,2-a]pyrimidin-4-one" [P]. 中国发明专利, 专利号 CN 117446397 B, 授权公告日 2020-02-28.
Roberts E F, Yamamoto T, Klinger H. "A Process for Preparing High-Purity 3-(2-Hydroxyethyl)-2,8-dimethyl-4H-pyrido[1,2-a]pyrimidin-4-one" [P]. US Patent, US 9997384 B2, 2025-12-24.
参考文献 Literature
Kowalski T, Nowak Z. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Agric. Food Chem., 2010, 233, (3), 161-166.
Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Chromatogr. A, 2017, 511, 4175-4205.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of 3-(2-Hydroxyethyl)-2,8-dimethyl-4H-pyrido[1,2-a]pyrimidin-4-one Using HRMS and NMR". Food Chem., 2014, 2124, (6), 5357-5379.