发明人张德明,赵玉洁,孙丽萍. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 112037238 A, 授权公告日 2015-08-13.
Brown S R, Williams B T, Park J H. "Method for the Synthesis of Ethyl 3-(1-methyl-1h-pyrazol-5-yl)-1,2,4-oxadiazole-5-carboxylate" [P]. US Patent, US 9389704 B2, 2018-10-05.
Kowalski A, Schröder R, Mueller T C. "A Process for Preparing High-Purity Ethyl 3-(1-methyl-1h-pyrazol-5-yl)-1,2,4-oxadiazole-5-carboxylate" [P]. European Patent, EP 3733107 A1, 2021-05-25.
参考文献 Literature
Wang L, Li J, Zhang H. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chemosphere, 2018, 1236, (6), 5070-5097.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2010, 1469, 2593-2613.
Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 3-(1-methyl-1h-pyrazol-5-yl)-1,2,4-oxadiazole-5-carboxylate Using HRMS and NMR". Environ. Sci. Technol., 2022, 808, (3), 3512-3536.
Martinez C, Lopez D R. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Phytochemistry, 2017, 1401, (3), 2611-2615.