发明人马晓峰,沈红梅,周伟. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 117631068 A, 授权公告日 2016-01-08.
发明人周伟,王建平,刘建华. "Method for the Synthesis of (E)-N,N-Dimethyl-N'-[7-(pyridin-3-yl)-[1,2,4]triazolo[1,5-a]pyrimidin-2-yl]methanimidamide" [P]. 中国发明专利, 专利号 CN 117827841 A, 授权公告日 2019-01-19.
发明人高志强,刘建华,沈红梅. "A Process for Preparing High-Purity (E)-N,N-Dimethyl-N'-[7-(pyridin-3-yl)-[1,2,4]triazolo[1,5-a]pyrimidin-2-yl]methanimidamide" [P]. 中国发明专利, 专利号 CN 116541121 A, 授权公告日 2023-02-04.
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". Rapid Commun. Mass Spectrom., 2016, 1882, 2157-2169.
Hughes D, Roberts J, Thomas A. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chem., 2013, 270, 3690-3718.