Schröder R, Williams B T, Lee S K. "一种的合成方法" [P]. US Patent, US 11240254 B2, 2018-02-27.
发明人韩伟,陈志强,钱学锋. "Method for the Synthesis of Pyrimido[1,2-a]purin-10(1H)-one-13C3" [P]. 中国发明专利, 专利号 CN 113668908 B, 授权公告日 2021-05-08.
发明人高志强,罗永刚,陈志强. "A Process for Preparing High-Purity Pyrimido[1,2-a]purin-10(1H)-one-13C3" [P]. 中国发明专利, 专利号 CN 116077049 A, 授权公告日 2020-09-15.
参考文献 Literature
Martinez C, Lopez D R. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chromatographia, 2010, 1892, 749-764.
Jensen P, Larsen A M, Olsen K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Talanta, 2024, 417, 4270-4297.
Zhou X P, Huang L, Wu G. "Identification and Structural Characterization of a Novel Degradation Product of Pyrimido[1,2-a]purin-10(1H)-one-13C3 Using HRMS and NMR". Food Chem., 2018, 1182, (3), 3424-3450.