139481-58-6Relevant articles and documents
METHOD FOR PREPARING TRITYL CANDESARTAN
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Paragraph 0031-0034, (2018/06/15)
The present invention uses a candesartan cyclic compound as a starting material and performs thereon a three-step reaction of forming tetrazole, hydrolysis and adding a protecting group to directly obtain trityl candesartan without separating an intermediate product via crystallization. The operating process is simple and thus is more applicable to industrial production.
METHOD FOR OBTAINING BENZIMIDAZOLE DERIVATIVES AND INTERMEDIATES THEREOF
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, (2010/11/25)
The present invention relates to a method for obtaining benzimizadole derivatives and intermediates thereof, preferably, for obtaining Candesartan and Candesartan cilexetil. Said method allows the benzimizadole derivatives to be obtained with a higher yield.
1-(CYCLOHEXYLOXYCARBONYLOXY)ETHYL 2-ETHOXY-1-[[2'-(1H-TETRAZOL-5-YL)BIPHENYL-4-YL]METHYL]BENZIMIDAZOLE-7-CARBOXYLATE AND COMPOSITIONS AND METHODS OF PHARMACEUTICAL USE THEREOF
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, (2008/06/13)
1-(Cyclohexyloxycarbonyloxy)ethyl 2-ethoxy-1-[[2'-(1 H-tetrazol-5-y l)biphenyl-4-yl]methyl]benzimidazole-7-carboxylate or a pharmaceutically acceptable salt thereof has potent angiotensin II antihypertensive activity, thus being useful as therapeutic agents for treating circulatory system diseases such as hypertensive diseases, heart diseases (e.g. hypercardia, heart failure, cardiac infarction, etc.), strokes, cerebral apoplexy, nephritis, etc.