发明人孙丽萍,周伟,林芳. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 113824419 A, 授权公告日 2015-01-07.
Yamamoto T, Kumar R, Fischer A B. "Method for the Synthesis of 2,4-Dichloro-7,8-dihydro-5H-thiopyrano[4,3-d]pyrimidine 6-oxide" [P]. US Patent, US 9423392 B2, 2025-06-21.
参考文献 Literature
Smith J A, Johnson M B. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Sep. Sci., 2016, 1669, (3), 772-778.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chim. Acta, 2018, 1631, (12), 5981-6005.
Wang L, Li J, Zhang H. "Identification and Structural Characterization of a Novel Degradation Product of 2,4-Dichloro-7,8-dihydro-5H-thiopyrano[4,3-d]pyrimidine 6-oxide Using HRMS and NMR". J. Agric. Food Chem., 2013, 644, (10), 9915-9923.
Smith J A, Johnson M B. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chem., 2016, 229, 7134-7142.