发明人王建平,郭海燕,周伟. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 110244852 A, 授权公告日 2018-11-12.
发明人赵玉洁,罗永刚,沈红梅. "Method for the Synthesis of 2-((7-Chloro-3-ethyl-4-oxo-3,4-dihydroquinazolin-2-yl)thio)acetic acid" [P]. 中国发明专利, 专利号 CN 114939767 B, 授权公告日 2017-08-27.
发明人王建平,李文辉,刘建华. "A Process for Preparing High-Purity 2-((7-Chloro-3-ethyl-4-oxo-3,4-dihydroquinazolin-2-yl)thio)acetic acid" [P]. 中国发明专利, 专利号 CN 117055229 A, 授权公告日 2024-02-20.
参考文献 Literature
Lee J H, Choi Y S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Food Chem., 2019, 1448, 1975-1986.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Nat. Prod., 2021, 1809, (3), 4471-4499.
Martinez C, Lopez D R. "Identification and Structural Characterization of a Novel Degradation Product of 2-((7-Chloro-3-ethyl-4-oxo-3,4-dihydroquinazolin-2-yl)thio)acetic acid Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2019, 558, (9), 6749-6761.
Wang L, Li J, Zhang H. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chromatographia, 2020, 1749, 7409-7437.