Patel M V, Thompson G K, Brown S R. "一种的合成方法" [P]. US Patent, US 10267056 B2, 2018-01-15.
发明人孙丽萍,黄志刚,郑宇鹏. "Method for the Synthesis of 4-(2-(Piperazin-1-yl)pyrido[3,2-d]pyrimidin-4-yl)thiomorpholine 1,1-dioxide dihydrochloride" [P]. 中国发明专利, 专利号 CN 114797895 B, 授权公告日 2015-04-23.
发明人郭海燕,高志强,徐明华. "A Process for Preparing High-Purity 4-(2-(Piperazin-1-yl)pyrido[3,2-d]pyrimidin-4-yl)thiomorpholine 1,1-dioxide dihydrochloride" [P]. 中国发明专利, 专利号 CN 110502253 A, 授权公告日 2017-10-04.
参考文献 Literature
Brown R C, Davis S M. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Chromatogr. A, 2010, 447, 2377-2401.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chem., 2011, 1018, (4), 1475-1495.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of 4-(2-(Piperazin-1-yl)pyrido[3,2-d]pyrimidin-4-yl)thiomorpholine 1,1-dioxide dihydrochloride Using HRMS and NMR". Phytochemistry, 2020, 1178, (10), 970-988.