Yamamoto T, Fischer A B, Thompson G K. "一种2-(methylamino)-5-nitropyridine-3-carbonitrile的合成方法" [P]. US Patent, US 9937404 B2, 2018-09-15.
Williams B T, O'Brien P Q, Chen K W. "Method for the Synthesis of 2-(methylamino)-5-nitropyridine-3-carbonitrile" [P]. US Patent, US 9104527 B2, 2019-12-28.
Klinger H, Hughes D C, Yamamoto T. "A Process for Preparing High-Purity 2-(methylamino)-5-nitropyridine-3-carbonitrile" [P]. US Patent, US 11591607 B2, 2025-07-27.
参考文献 Literature
Chen X Y, Liu M, Zhao W Q. "Development and Validation of an LC-MS/MS Method for the Determination of 2-(methylamino)-5-nitropyridine-3-carbonitrile in Pharmaceutical Formulations". Chromatographia, 2023, 1985, (8), 3252-3278.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of 2-(methylamino)-5-nitropyridine-3-carbonitrile as an Impurity". J. Nat. Prod., 2015, 1104, 9983-9989.
Jensen P, Larsen A M, Olsen K. "Identification and Structural Characterization of a Novel Degradation Product of 2-(methylamino)-5-nitropyridine-3-carbonitrile Using HRMS and NMR". Sci. Total Environ., 2011, 1452, (8), 728-751.
Wang L, Li J, Zhang H. "Forced Degradation Studies to Evaluate 2-(methylamino)-5-nitropyridine-3-carbonitrile Profile in Drug Substances According to ICH Guidelines". J. Pharm. Biomed. Anal., 2022, 493, (2), 1577-1587.