发明人徐明华,郭海燕,胡光. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 108957946 A, 授权公告日 2022-12-09.
Kumar R, O'Brien P Q, Chen K W. "Method for the Synthesis of 3-Methyl-5-nitro-[1,2]oxazolo[5,4-b]pyridine" [P]. US Patent, US 9493548 B2, 2020-10-14.
发明人孙丽萍,高志强,赵玉洁. "A Process for Preparing High-Purity 3-Methyl-5-nitro-[1,2]oxazolo[5,4-b]pyridine" [P]. 中国发明专利, 专利号 CN 109862621 B, 授权公告日 2018-04-12.
参考文献 Literature
Kumar A, Sharma P, Patel R S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Methods, 2016, 847, 5810-5819.
Wang L, Li J, Zhang H. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chim. Acta, 2022, 1885, 9552-9565.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of 3-Methyl-5-nitro-[1,2]oxazolo[5,4-b]pyridine Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2022, 371, (3), 4488-4511.