发明人胡光,郑宇鹏,高志强. "Method for the Synthesis of 4,5-Dimethyl-4H-1,2,4-triazole-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 115492982 B, 授权公告日 2017-06-18.
Fischer A B, O'Brien P Q, Hughes D C. "A Process for Preparing High-Purity 4,5-Dimethyl-4H-1,2,4-triazole-3-carboxylic acid" [P]. US Patent, US 10367066 B2, 2024-12-18.
参考文献 Literature
Hughes D, Roberts J, Thomas A. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Sci. Total Environ., 2010, 2329, (7), 5567-5597.
Garcia M, Rodriguez P. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2019, 911, 613-636.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of 4,5-Dimethyl-4H-1,2,4-triazole-3-carboxylic acid Using HRMS and NMR". Anal. Chem., 2015, 1767, (6), 7734-7762.
Garcia M, Rodriguez P. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Chromatogr. A, 2010, 1683, 4399-4423.