发明人何建平,孙丽萍,唐晓军. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 116917887 A, 授权公告日 2023-01-06.
发明人韩伟,郭海燕,冯建国. "Method for the Synthesis of Ethyl 6-methyl-3-nitro-2-oxo-1,2-dihydropyridine-4-carboxylate" [P]. 中国发明专利, 专利号 CN 117856885 B, 授权公告日 2015-08-13.
发明人黄志刚,李文辉,徐明华. "A Process for Preparing High-Purity Ethyl 6-methyl-3-nitro-2-oxo-1,2-dihydropyridine-4-carboxylate" [P]. 中国发明专利, 专利号 CN 110441997 A, 授权公告日 2021-08-20.
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". Biomed. Chromatogr., 2018, 2009, (7), 9472-9494.
Xu M, Hu Y, Zhou D. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Pharm. Biomed. Anal., 2019, 2351, (8), 8305-8331.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 6-methyl-3-nitro-2-oxo-1,2-dihydropyridine-4-carboxylate Using HRMS and NMR". J. Sep. Sci., 2023, 750, (2), 7945-7958.