发明人罗永刚,郑宇鹏,高志强. "Method for the Synthesis of 2-(Difluoromethyl)-4-hydroxy-3-nitropyridine-5-carboxamide" [P]. 中国发明专利, 专利号 CN 109730409 A, 授权公告日 2021-01-04.
O'Brien P Q, Thompson G K, Patel M V. "A Process for Preparing High-Purity 2-(Difluoromethyl)-4-hydroxy-3-nitropyridine-5-carboxamide" [P]. US Patent, US 9734728 B2, 2016-06-14.
参考文献 Literature
Brown R C, Davis S M. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Molecules, 2022, 2208, (4), 9484-9493.
Yamamoto K, Tanaka H, Suzuki T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Talanta, 2012, 450, (6), 5670-5683.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of 2-(Difluoromethyl)-4-hydroxy-3-nitropyridine-5-carboxamide Using HRMS and NMR". J. Chromatogr. A, 2013, 225, (2), 3317-3345.