Fischer A B, Park J H, Kumar R. "一种的合成方法" [P]. US Patent, US 9322254 B2, 2019-12-20.
发明人郑宇鹏,黄志刚,高志强. "Method for the Synthesis of 4-Ethynyl-1,4-dihydro-8-methyl-1-[(4-methylphenyl)sulfonyl]-2H-3,1-benzoxazin-2-one" [P]. 中国发明专利, 专利号 CN 112734611 A, 授权公告日 2016-04-15.
参考文献 Literature
Mueller T, Schmidt R K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Talanta, 2010, 2096, (8), 1592-1609.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Agric. Food Chem., 2014, 1953, (2), 8692-8721.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of 4-Ethynyl-1,4-dihydro-8-methyl-1-[(4-methylphenyl)sulfonyl]-2H-3,1-benzoxazin-2-one Using HRMS and NMR". Anal. Methods, 2015, 1202, (9), 4485-4508.
Zhang Y, Li Q, Chen T. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Environ. Sci. Technol., 2018, 772, (9), 2597-2618.