Roberts E F, Mueller T, Anderson J P. "一种的合成方法" [P]. US Patent, US 9615780 B2, 2015-06-04.
发明人赵玉洁,周伟,何建平. "Method for the Synthesis of 22-Ethoxy-1-[[2'-[1-(triphenylmethyl)-1H-tetrazol-5-yl][1,1'-biphenyl]-4-yl]methyl]-1H-benzimidazole-7-carboxylic acid methyl ester (Candesartan Cilexetil Impurit)" [P]. 中国发明专利, 专利号 CN 111302095 A, 授权公告日 2017-10-02.
参考文献 Literature
Kim S H, Park J Y. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chim. Acta, 2014, 651, (4), 4447-4457.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Methods, 2024, 197, 8431-8442.
Garcia M, Rodriguez P. "Identification and Structural Characterization of a Novel Degradation Product of 22-Ethoxy-1-[[2'-[1-(triphenylmethyl)-1H-tetrazol-5-yl][1,1'-biphenyl]-4-yl]methyl]-1H-benzimidazole-7-carboxylic acid methyl ester (Candesartan Cilexetil Impurit) Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2017, 2229, (10), 1298-1324.