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[ CAS No. 139481-59-7 ] {[proInfo.proName]}

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Chemical Structure| 139481-59-7
Chemical Structure| 139481-59-7
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Product Details of [ 139481-59-7 ]

CAS No. :139481-59-7 MDL No. :MFCD00864463
Formula : C24H20N6O3 Boiling Point : -
Linear Structure Formula :- InChI Key :HTQMVQVXFRQIKW-UHFFFAOYSA-N
M.W : 440.45 Pubchem ID :2541
Synonyms :
CV 11974;Candesartan M1;Candesartan, CV11974, CV-1197, CV 11974, Trade names: Blopress, Atacand, Amias, and Ratacand
Chemical Name :1-((2'-(2H-Tetrazol-5-yl)-[1,1'-biphenyl]-4-yl)methyl)-2-ethoxy-1H-benzo[d]imidazole-7-carboxylic acid

Safety of [ 139481-59-7 ]

Signal Word:Danger Class:4.1
Precautionary Statements:P240-P210-P241-P264-P280-P302+P352-P370+P378-P337+P313-P305+P351+P338-P362+P364-P332+P313 UN#:1325
Hazard Statements:H315-H319-H228 Packing Group:Ⅱ
GHS Pictogram:

Application In Synthesis of [ 139481-59-7 ]

* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.

  • Downstream synthetic route of [ 139481-59-7 ]

[ 139481-59-7 ] Synthesis Path-Downstream   1~4

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YieldReaction ConditionsOperation in experiment
Example 15. Obtaining candesartan cilexetil Methane sulphonic acid (62 mg) is added to a solution of cilexetil 2-ethoxy-l- [2 '- (trityl) -2H-tetrazole-5- yl) [ 1, 1 ' -biphenyl] -4-yl] methyl] - lH-benzimidazole-7- carboxylate (0.42 g) , which can be obtained from candesartan according to the method described in examples EPO <DP n="23"/>7 and 8 of European patent EP 459.136 Bl, in methylene chloride, keeping the temperature between -5 and 0C. Once the acid has been added, the ice bath is removed and the mixture is stirred for 2 hours at room temperature. When 5 the reaction is completed, cold water and methylene chloride are added and the pH of the resulting mixture is adjusted to approximately 6.3 with a solution of sodium bicarbonate in water 7% (p/v) . The aqueous phase is separated and extracted with methylene chloride. The10 organic phases are combined, washed with water and concentrated at reduced pressure. Acetone is added to the concentration residue and it is concentrated again at reduced pressure. The so obtained solid is recrystallised with ethanol/hexane, filtered and dried under vacuum at15 40C. (80% yield) .
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