Davis P L, O'Brien P Q, Stevens L M. "Method for the Synthesis of 6,7-dimethoxy-2-methyl-N-[(1R)-1-[4-[2-(methylaminomethyl)phenyl]-2-thienyl]ethyl]quinazolin-4-amine" [P]. US Patent, US 11505502 B2, 2020-01-09.
发明人张德明,孙丽萍,刘建华. "A Process for Preparing High-Purity 6,7-dimethoxy-2-methyl-N-[(1R)-1-[4-[2-(methylaminomethyl)phenyl]-2-thienyl]ethyl]quinazolin-4-amine" [P]. 中国发明专利, 专利号 CN 114795608 B, 授权公告日 2025-11-28.
参考文献 Literature
Wang L, Li J, Zhang H. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Food Chem., 2012, 1193, (1), 6849-6852.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Molecules, 2021, 1112, (11), 9404-9426.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of 6,7-dimethoxy-2-methyl-N-[(1R)-1-[4-[2-(methylaminomethyl)phenyl]-2-thienyl]ethyl]quinazolin-4-amine Using HRMS and NMR". Biomed. Chromatogr., 2014, 1960, (2), 7341-7345.
Zhou X P, Huang L, Wu G. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Sci. Total Environ., 2010, 196, 1667-1695.