Roberts E F, Yamamoto T, Thompson G K. "一种的合成方法" [P]. US Patent, US 11331593 B2, 2016-01-26.
发明人沈红梅,李文辉,黄志刚. "Method for the Synthesis of 2-Ethoxy-1-[[2’-[2-(trityl)-2H-tetrazol-5-yl][1,1’-biphenyl]-4-yl]methyl]-1H-benzimidazole-4-carboxylic Acid Methyl Ester (Candesartan Impurity)" [P]. 中国发明专利, 专利号 CN 108938542 B, 授权公告日 2024-09-13.
Davis P L, Brown S R, Mueller T. "A Process for Preparing High-Purity 2-Ethoxy-1-[[2’-[2-(trityl)-2H-tetrazol-5-yl][1,1’-biphenyl]-4-yl]methyl]-1H-benzimidazole-4-carboxylic Acid Methyl Ester (Candesartan Impurity)" [P]. US Patent, US 9633247 B2, 2021-03-09.
参考文献 Literature
Garcia M, Rodriguez P. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Chromatogr. A, 2018, 1289, 8505-8532.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2019, 2088, (7), 5159-5183.