发明人唐晓军,沈红梅,孙丽萍. "Method for the Synthesis of 2-(4-Nitrophenyl)oxazolo[5,4-d]pyrimidin-7-ol" [P]. 中国发明专利, 专利号 CN 116165934 A, 授权公告日 2016-06-07.
Klinger H, O'Brien P Q, Anderson J P. "A Process for Preparing High-Purity 2-(4-Nitrophenyl)oxazolo[5,4-d]pyrimidin-7-ol" [P]. US Patent, US 10150478 B2, 2022-06-23.
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". Molecules, 2016, 938, (6), 7701-7715.
Wang L, Li J, Zhang H. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2017, 270, 478-496.
Zhou X P, Huang L, Wu G. "Identification and Structural Characterization of a Novel Degradation Product of 2-(4-Nitrophenyl)oxazolo[5,4-d]pyrimidin-7-ol Using HRMS and NMR". J. Pharm. Biomed. Anal., 2013, 1516, (3), 561-587.
Mueller T, Schmidt R K. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Food Chem., 2014, 717, (11), 7416-7421.