Home GPCR & G Protein Angiotensin Receptor antagonist Azilsartan Medoxomil

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Azilsartan Medoxomil Angiotensin Receptor antagonist

Cat.No.S3057

Azilsartan Medoxomil (TAK-491) is a potent angiotensin II type 1 (AT1) receptor antagonist, inhibits the RAAS, with an IC50 of 2.6 nM, exhibits >10,000-fold selectivity over AT2.
Azilsartan Medoxomil Angiotensin Receptor antagonist Chemical Structure

Chemical Structure

Molecular Weight: 568.53

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Quality Control

Batch: Purity: 99.96%
99.96

Solubility

In vitro
Batch:

DMSO : 114 mg/mL (200.51 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Water : Insoluble

Ethanol : Insoluble

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In vivo
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Chemical Information, Storage & Stability

Molecular Weight 568.53 Formula

C30H24N4O8

 Storage (From the date of receipt)
CAS No. 863031-21-4 Download SDF Storage of Stock Solutions

Synonyms TAK-491 Smiles CCOC1=NC2=CC=CC(=C2N1CC3=CC=C(C=C3)C4=CC=CC=C4C5=NOC(=O)N5)C(=O)OCC6=C(OC(=O)O6)C

Mechanism of Action

Targets/IC50/Ki
AT1 receptor
2.6 nM
In vitro
Azilsartan medoxomil is a prodrug, which is rapidly converted to the active moiety, azilsartan (TAK-536), by ester hydrolysis in the gut and plasma during absorption after oral administration. Azilsartan selectively blocks the binding of angiotensin II to the AT1 (angiotensin II type 1) receptors found in the vascular smooth muscle and the adrenal gland, thereby promoting vasodilation and a decrease in the effects of aldosterone. Azilsartan is a highly selective antagonist to the AT1 receptor, with an IC50 of 2.6 nM, exhibiting a >10,000-fold affinity for the AT1 receptor compared with the AT2 receptor, and has not shown affinity for other cardiac receptors or ion channels. The inhibitory effect of Azilsartan persists after washout of the free compound (IC50 value of 7.4 nM). Azilsartan also inhibits the accumulation of angiotensin II -induced inositol 1-phosphate (IP1) in the cell-based assay with an IC50 value of 9.2 nM, and this effect is resistant to washout (IC50 value of 81.3 nM).
Kinase Assay
Radioligand Binding
A radioligand binding assay is performed by using human AT1 receptor-coated microplates containing 4.4 to 6.2 fmol of receptors/well (10 μg of membrane protein/well). Membrane-coated wells are incubated with 45 μl of assay buffer (50 mM Tris-HCl, 5 mM MgCl2, 1 mM EDTA, and 0.005% CHAPS, pH 7.4) containing various concentrations of test compounds at room temperature. After 90 min, 5 μl of 125I-Sar1-Ile8-AII (final concentration 0.6 nM) dissolved in assay buffer is added to the wells, and the plate is incubated for 5 h. In each step, the plate is briefly and gently shaken on a plate shaker.
References

Clinical Trial Information

(data from https://clinicaltrials.gov, updated on 2024-05-22)

NCT Number Recruitment Conditions Sponsor/Collaborators Start Date Phases
NCT02541669 Completed
Healthy Volunteer
Takeda
 November 20 2015 Phase 1

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