[EN] METHOD OF PREPARING POTASSIUM SALT OF AZILSARTAN MEDOXOMIL OF HIGH PURITY<br/>[FR] PROCÉDÉ DE PRÉPARATION D'UN SEL DE POTASSIUM D'AZILSARTAN MÉDOXOMIL DE GRANDE PURETÉ
申请人:ZENTIVA KS
公开号:WO2013156005A1
公开(公告)日:2013-10-24
The present solution relates to new forms of (5-methyl-2-oxo-1,3-dioxol-4-yl)methyl ester of 1-[[2'-(2,5-dihydro-5-oxo-1,2,4-oxadiazol-3-yl)[1,1'-biphenyl]-4-yl]methyl]-2-ethoxy-1H- benzimidazole-7-carboxylic acid (azilsartan medoxomil) of formula I and a method of their preparation. The solution also relates to use of these new forms in preparing the potassium salt of azilsartan medoxomil.
该解决方案涉及到公式I的新形式(5-甲基-2-氧代-1,3-二氧杂环[4-基]甲酯)1-[[2'-(2,5-二氢-5-氧代-1,2,4-噁二唑-3-基)[1,1'-联苯]-4-基]甲基]-2-乙氧基-1H-苯并咪唑-7-甲酸(阿利沙坦酮酸酯)的新形式及其制备方法。该解决方案还涉及使用这些新形式来制备阿利沙坦酮酸酯的钾盐。