发明人郑宇鹏,周伟,马晓峰. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 115709677 A, 授权公告日 2018-04-21.
发明人沈红梅,朱建伟,李文辉. "Method for the Synthesis of Ethyl 4-aminopyrazolo[5,1-c][1,2,4]triazine-3-carboxylate" [P]. 中国发明专利, 专利号 CN 116252082 A, 授权公告日 2016-01-04.
发明人胡光,郭海燕,李文辉. "A Process for Preparing High-Purity Ethyl 4-aminopyrazolo[5,1-c][1,2,4]triazine-3-carboxylate" [P]. 中国发明专利, 专利号 CN 114822985 A, 授权公告日 2016-12-15.
参考文献 Literature
Chen X Y, Liu M, Zhao W Q. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Environ. Sci. Technol., 2018, 2003, (12), 1145-1154.
Brown R C, Davis S M. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Sep. Sci., 2016, 1009, (11), 9131-9140.
Garcia M, Rodriguez P. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 4-aminopyrazolo[5,1-c][1,2,4]triazine-3-carboxylate Using HRMS and NMR". Molecules, 2011, 252, 8728-8747.
Fischer P, Wagner E. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Chromatogr. A, 2024, 2459, (8), 7444-7470.