Lefèvre J P, Björnsson E, Nielsen H. "一种的合成方法" [P]. European Patent, EP 3252426 A1, 2017-07-04.
发明人王建平,张德明,孙丽萍. "Method for the Synthesis of 3-Amino-6-(dimethylamino)-1-(4-fluorophenyl)pyrazolo[3,4-d][1,3]oxazin-4(1H)-one" [P]. 中国发明专利, 专利号 CN 116501246 A, 授权公告日 2024-09-02.
参考文献 Literature
Garcia M, Rodriguez P. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Biomed. Chromatogr., 2011, 299, (6), 5762-5765.
Garcia M, Rodriguez P. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Molecules, 2021, 1440, 1545-1564.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of 3-Amino-6-(dimethylamino)-1-(4-fluorophenyl)pyrazolo[3,4-d][1,3]oxazin-4(1H)-one Using HRMS and NMR". Phytochemistry, 2015, 1793, (12), 2165-2169.
Mueller T, Schmidt R K. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Agric. Food Chem., 2019, 424, (5), 950-960.