Nowak P, Björnsson E, Schröder R. "一种的合成方法" [P]. European Patent, EP 3541478 A1, 2019-09-06.
发明人林芳,李文辉,韩伟. "Method for the Synthesis of 3-Amino-4-(dimethylamino)cyclobut-3-ene-1,2-dione" [P]. 中国发明专利, 专利号 CN 109785693 B, 授权公告日 2016-04-04.
参考文献 Literature
Kim S H, Park J Y. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chem., 2021, 1435, (5), 5328-5350.
Hughes D, Roberts J, Thomas A. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Biomed. Chromatogr., 2011, 1688, (7), 2270-2273.
Kumar A, Sharma P, Patel R S. "Identification and Structural Characterization of a Novel Degradation Product of 3-Amino-4-(dimethylamino)cyclobut-3-ene-1,2-dione Using HRMS and NMR". Environ. Sci. Technol., 2015, 742, (12), 2102-2105.
Smith J A, Johnson M B. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Phytochemistry, 2013, 707, 2845-2856.