发明人杨光,郭海燕,赵玉洁. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 110265332 A, 授权公告日 2020-06-13.
发明人罗永刚,何建平,赵玉洁. "Method for the Synthesis of 2-Amino-5-ethylidene-4-oxo-4,5-dihydro-1H-imidazole-1-carbonitrile" [P]. 中国发明专利, 专利号 CN 114346925 B, 授权公告日 2022-03-13.
Williams B T, Hughes D C, Anderson J P. "A Process for Preparing High-Purity 2-Amino-5-ethylidene-4-oxo-4,5-dihydro-1H-imidazole-1-carbonitrile" [P]. US Patent, US 11249700 B2, 2021-09-01.
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". Anal. Chem., 2021, 1632, 7134-7150.
Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Nat. Prod., 2013, 534, (6), 7984-7994.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of 2-Amino-5-ethylidene-4-oxo-4,5-dihydro-1H-imidazole-1-carbonitrile Using HRMS and NMR". J. Agric. Food Chem., 2018, 705, 7428-7444.