Lee S K, Mueller T, O'Brien P Q. "一种的合成方法" [P]. US Patent, US 9044695 B2, 2025-01-01.
发明人朱建伟,李文辉,何建平. "Method for the Synthesis of 4-oxo-3,4-dihydroquinazoline-7-carboxylic acid" [P]. 中国发明专利, 专利号 CN 111029177 A, 授权公告日 2022-03-25.
发明人徐明华,沈红梅,罗永刚. "A Process for Preparing High-Purity 4-oxo-3,4-dihydroquinazoline-7-carboxylic acid" [P]. 中国发明专利, 专利号 CN 114704957 B, 授权公告日 2025-03-11.
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". J. Sep. Sci., 2020, 674, (6), 6373-6388.
Mueller T, Schmidt R K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Pharm. Biomed. Anal., 2013, 1766, (9), 800-826.