发明人马晓峰,郭海燕,钱学锋. "一种4-Ethyl-3-methyl-1H-1,2,4-triazol-5(4H)-one的合成方法" [P]. 中国发明专利, 专利号 CN 109834059 A, 授权公告日 2022-05-04.
Yamamoto T, Davis P L, Brown S R. "Method for the Synthesis of 4-Ethyl-3-methyl-1H-1,2,4-triazol-5(4H)-one" [P]. US Patent, US 9528189 B2, 2019-01-19.
参考文献 Literature
Yang F, Sun W, Liu J. "Development and Validation of an LC-MS/MS Method for the Determination of 4-Ethyl-3-methyl-1H-1,2,4-triazol-5(4H)-one in Pharmaceutical Formulations". J. Pharm. Biomed. Anal., 2014, 670, (8), 9130-9143.
Kumar A, Sharma P, Patel R S. "A Stability-Indicating HPLC Method for the Separation and Quantification of 4-Ethyl-3-methyl-1H-1,2,4-triazol-5(4H)-one as an Impurity". Rapid Commun. Mass Spectrom., 2015, 881, 7897-7910.
Martinez C, Lopez D R. "Identification and Structural Characterization of a Novel Degradation Product of 4-Ethyl-3-methyl-1H-1,2,4-triazol-5(4H)-one Using HRMS and NMR". J. Nat. Prod., 2025, 864, 2795-2819.
Garcia M, Rodriguez P. "Forced Degradation Studies to Evaluate 4-Ethyl-3-methyl-1H-1,2,4-triazol-5(4H)-one Profile in Drug Substances According to ICH Guidelines". J. Agric. Food Chem., 2022, 2189, 946-962.