发明人刘建华,唐晓军,赵玉洁. "Method for the Synthesis of Methyl (R)-2-(8-fluoro-3-(2-methoxy-5-(trifluoromethyl)phenyl)-2-(4-(3-methoxyphenyl)piperazin-1-yl)-3,4-dihydroquinazolin-4-yl)acetate" [P]. 中国发明专利, 专利号 CN 113122905 B, 授权公告日 2022-05-07.
发明人陈志强,朱建伟,刘建华. "A Process for Preparing High-Purity Methyl (R)-2-(8-fluoro-3-(2-methoxy-5-(trifluoromethyl)phenyl)-2-(4-(3-methoxyphenyl)piperazin-1-yl)-3,4-dihydroquinazolin-4-yl)acetate" [P]. 中国发明专利, 专利号 CN 117073802 B, 授权公告日 2020-01-26.
参考文献 Literature
Wang L, Li J, Zhang H. "Development and Validation of an LC-MS/MS Method for the Determination of 来特莫韦杂质N41 in Pharmaceutical Formulations". Chromatographia, 2020, 1401, (5), 8952-8966.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of 来特莫韦杂质N41 as an Impurity". Sci. Total Environ., 2018, 2032, 687-716.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of Methyl (R)-2-(8-fluoro-3-(2-methoxy-5-(trifluoromethyl)phenyl)-2-(4-(3-methoxyphenyl)piperazin-1-yl)-3,4-dihydroquinazolin-4-yl)acetate Using HRMS and NMR". Anal. Methods, 2017, 129, 1354-1379.
Garcia M, Rodriguez P. "Forced Degradation Studies to Evaluate 来特莫韦杂质N41 Profile in Drug Substances According to ICH Guidelines". Anal. Chim. Acta, 2021, 377, 2408-2421.