发明人沈红梅,赵玉洁,马晓峰. "Method for the Synthesis of 5,7-Dimethylbenzo[d]oxazole-2-thiol" [P]. 中国发明专利, 专利号 CN 111538695 A, 授权公告日 2015-04-13.
发明人韩伟,孙丽萍,高志强. "A Process for Preparing High-Purity 5,7-Dimethylbenzo[d]oxazole-2-thiol" [P]. 中国发明专利, 专利号 CN 113243692 B, 授权公告日 2017-10-25.
参考文献 Literature
Hughes D, Roberts J, Thomas A. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chromatographia, 2018, 445, 8311-8326.
Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chim. Acta, 2011, 823, 1775-1781.
Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of 5,7-Dimethylbenzo[d]oxazole-2-thiol Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2018, 283, (12), 9231-9243.
Kowalski T, Nowak Z. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chem., 2013, 408, (7), 1894-1898.