发明人赵玉洁,周伟,何建平. "Method for the Synthesis of ethyl 4-methyl-1,2,5-oxadiazole-3-carboxylate" [P]. 中国发明专利, 专利号 CN 112684757 B, 授权公告日 2025-08-13.
发明人黄志刚,张德明,杨光. "A Process for Preparing High-Purity ethyl 4-methyl-1,2,5-oxadiazole-3-carboxylate" [P]. 中国发明专利, 专利号 CN 111801764 A, 授权公告日 2020-03-13.
参考文献 Literature
Brown R C, Davis S M. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Biomed. Chromatogr., 2016, 890, (10), 2869-2880.
Garcia M, Rodriguez P. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chromatographia, 2016, 1655, 1142-1172.
Garcia M, Rodriguez P. "Identification and Structural Characterization of a Novel Degradation Product of ethyl 4-methyl-1,2,5-oxadiazole-3-carboxylate Using HRMS and NMR". J. Sep. Sci., 2020, 1641, 6543-6552.
Mueller T, Schmidt R K. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Environ. Sci. Technol., 2016, 2468, 1719-1733.