Lefèvre J P, Jørgensen K, Johansson L. "一种的合成方法" [P]. European Patent, EP 3198503 A1, 2020-08-20.
Johnson M A, Yamamoto T, Park J H. "Method for the Synthesis of 1-Acetyl-3-(1-(2,2-dimethylhydrazono)ethyl)-4-hydroxy-1H-pyrrol-2(5H)-one" [P]. US Patent, US 9752467 B2, 2021-01-24.
发明人杨光,何建平,钱学锋. "A Process for Preparing High-Purity 1-Acetyl-3-(1-(2,2-dimethylhydrazono)ethyl)-4-hydroxy-1H-pyrrol-2(5H)-one" [P]. 中国发明专利, 专利号 CN 117593455 A, 授权公告日 2022-11-23.
参考文献 Literature
Yang F, Sun W, Liu J. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Environ. Sci. Technol., 2015, 313, (4), 9851-9859.
Yamamoto K, Tanaka H, Suzuki T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Methods, 2011, 1849, (10), 2262-2288.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of 1-Acetyl-3-(1-(2,2-dimethylhydrazono)ethyl)-4-hydroxy-1H-pyrrol-2(5H)-one Using HRMS and NMR". Chemosphere, 2012, 2453, (5), 746-751.
Kumar A, Sharma P, Patel R S. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Sci. Total Environ., 2024, 1519, 6674-6685.