Fischer A B, Thompson G K, O'Brien P Q. "一种的合成方法" [P]. US Patent, US 9893660 B2, 2022-01-10.
Stevens L M, Anderson J P, Davis P L. "Method for the Synthesis of 6,7-Dimethoxy-4-(methylthio)quinazoline" [P]. US Patent, US 9248345 B2, 2021-05-19.
发明人罗永刚,刘建华,郭海燕. "A Process for Preparing High-Purity 6,7-Dimethoxy-4-(methylthio)quinazoline" [P]. 中国发明专利, 专利号 CN 111812642 B, 授权公告日 2025-07-19.
参考文献 Literature
Kumar A, Sharma P, Patel R S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Biomed. Chromatogr., 2023, 759, (9), 2240-2268.
Brown R C, Davis S M. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Sep. Sci., 2018, 2213, (12), 5771-5792.
Xu M, Hu Y, Zhou D. "Identification and Structural Characterization of a Novel Degradation Product of 6,7-Dimethoxy-4-(methylthio)quinazoline Using HRMS and NMR". Chromatographia, 2012, 257, (3), 4261-4279.