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| Name | Eprosartan | ||||||||||||||||||||||||||||||||||||
| Accession Number | DB00876 (APRD00950) | ||||||||||||||||||||||||||||||||||||
| Type | small molecule | ||||||||||||||||||||||||||||||||||||
| Groups | approved | ||||||||||||||||||||||||||||||||||||
| Description | Eprosartan is an angiotensin II receptor antagonist used for the treatment of high blood pressure. It acts on the renin-angiotensin system in two ways to decrease total peripheral resistance. First, it blocks the binding of angiotensin II to AT1 receptors in vascular smooth muscle, causing vascular dilatation. Second, it inhibits sympathetic norepinephrine production, further reducing blood pressure. |
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| Structure |
Download: MOL | SDF | SMILES | InChI Display: 2D Structure | 3D Structure |
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| Synonyms | Not Available | ||||||||||||||||||||||||||||||||||||
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| CAS number | 133040-01-4 | ||||||||||||||||||||||||||||||||||||
| Weight |
Average: 424.513 Monoisotopic: 424.145677956 |
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| Chemical Formula | C23H24N2O4S | ||||||||||||||||||||||||||||||||||||
| InChI Key | InChIKey=OROAFUQRIXKEMV-UHFFFAOYSA-N | ||||||||||||||||||||||||||||||||||||
| InChI |
InChI=1S/C23H24N2O4S/c1-2-3-6-21-24-14-19(12-18(23(28)29)13-20-5-4-11-30-20)25(21)15-16-7-9-17(10-8-16)22(26)27/h4-5,7-12,14H,2-3,6,13,15H2,1H3,(H,26,27)(H,28,29)
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| IUPAC Name |
4-({2-butyl-5-[2-carboxy-2-(thiophen-2-ylmethyl)eth-1-en-1-yl]-1H-imidazol-1-yl}methyl)benzoic acid
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| SMILES |
CCCCC1=NC=C(C=C(CC2=CC=CS2)C(O)=O)N1CC1=CC=C(C=C1)C(O)=O
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| Mass Spec | Not Available | ||||||||||||||||||||||||||||||||||||
| Taxonomy | |||||||||||||||||||||||||||||||||||||
| Kingdom | Organic | ||||||||||||||||||||||||||||||||||||
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| Pharmacology | |||||||||||||||||||||||||||||||||||||
| Indication | For the management of hypertension alone or in combination with other classes of antihypertensive agents. Also used as a first-line agent in the treatment of diabetic nephropathy, as well as a second-line agent in the treatment of congestive heart failure (only in those intolerant of ACE inhibitors). | ||||||||||||||||||||||||||||||||||||
| Pharmacodynamics | Angiotensin II, the principal pressor agent of the renin-angiotensin system, is formed from angiotensin I in a reaction catalyzed by angiotensin-converting enzyme [kininase II]. It is responsible for effects such as vasoconstriction, stimulation of synthesis and release of aldosterone, cardiac stimulation, and renal reabsorption of sodium. Eprosartan selectively blocks the binding of angiotensin II to the AT1 receptor, which in turn leads to multiple effects including vasodilation, a reduction in the secretion of vasopressin, and reduction in the production and secretion of aldosterone. The resulting effect is a decrease in blood pressure. | ||||||||||||||||||||||||||||||||||||
| Mechanism of action | Eprosartan blocks the vasoconstrictor and aldosterone-secreting effects of angiotensin II by selectively blocking the binding of angiotensin II to the AT1 receptor found in many tissues (e.g., vascular smooth muscle, adrenal gland). There is also an AT2 receptor found in many tissues but it is not known to be associated with cardiovascular homeostasis. Eprosartan does not exhibit any partial agonist activity at the AT1 receptor. Its affinity for the AT1 receptor is 1,000 times greater than for the AT2 receptor. In vitro binding studies indicate that eprosartan is a reversible, competitive inhibitor of the AT1 receptor. Eprosartan has also been shown to bind to AT1 receptors both presynaptically and synaptically. Its action on presynaptic AT1 receptors results in the inhibition of sympathetically stimulated noradrenaline release. Unlike ACE inhibitors, eprosartan and other ARBs do not interfere with response to bradykinins and substance P, which allows for the absence of adverse effects that are present in ACE inhibitors (eg. dry cough). | ||||||||||||||||||||||||||||||||||||
| Absorption | Absolute bioavailability following a single 300 mg oral dose of eprosartan is approximately 13%. Administering eprosartan with food delays absorption. | ||||||||||||||||||||||||||||||||||||
| Volume of distribution | Not Available | ||||||||||||||||||||||||||||||||||||
| Protein binding | Plasma protein binding of eprosartan is high (approximately 98%) and constant over the concentration range achieved with therapeutic doses. | ||||||||||||||||||||||||||||||||||||
| Metabolism |
Eprosartan is not metabolized by the cytochrome P450 system. It is mainly eliminated as unchanged drug. Less than 2% of an oral dose is excreted in the urine as a glucuronide. |
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| Route of elimination | Not Available | ||||||||||||||||||||||||||||||||||||
| Half life | The terminal elimination half-life of eprosartan following oral administration is typically 5 to 9 hours. | ||||||||||||||||||||||||||||||||||||
| Clearance | Not Available | ||||||||||||||||||||||||||||||||||||
| Toxicity | There was no mortality in rats and mice receiving oral doses of up to 3000 mg eprosartan/kg and in dogs receiving oral doses of up to 1000 mg eprosartan/kg. | ||||||||||||||||||||||||||||||||||||
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| Pathways | Not Available | ||||||||||||||||||||||||||||||||||||
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| Properties | |||||||||||||||||||||||||||||||||||||
| State | solid | ||||||||||||||||||||||||||||||||||||
| Melting point | 248-250oC (mesylate form) | ||||||||||||||||||||||||||||||||||||
| Experimental Properties |
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| Synthesis Reference | Not Available | ||||||||||||||||||||||||||||||||||||
| General Reference |
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| PDB Entries | Not Available | ||||||||||||||||||||||||||||||||||||
| FDA label | show (1.1 MB) | ||||||||||||||||||||||||||||||||||||
| MSDS | Not Available | ||||||||||||||||||||||||||||||||||||
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| Drug Interactions | Not Available | ||||||||||||||||||||||||||||||||||||
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| Targets |
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1. Type-1 angiotensin II receptor Pharmacological action: yesActions: antagonist Receptor for angiotensin II. Mediates its action by association with G proteins that activate a phosphatidylinositol- calcium second messenger system Organism class: humanUniProt ID: P30556 ![]() Gene: AGTR1 ![]() Protein Sequence: FASTA Gene Sequence: FASTA SNPs: SNPJam Report ![]() References:
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| Enzymes |
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Actions: inhibitor
Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It oxidizes a variety of structurally unrelated compounds, including steroids, fatty acids, and xenobiotics. This enzyme contributes to the wide pharmacokinetics variability of the metabolism of drugs such as S- warfarin, diclofenac, phenytoin, tolbutamide and losartan UniProt ID: P11712![]() Gene: CYP2C9 Protein Sequence: FASTA Gene Sequence: FASTA SNPs: SNPJam Report ![]() References:
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| Transporters |
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1. Canalicular multispecific organic anion transporter 1 Actions: inducerMediates hepatobiliary excretion of numerous organic anions. May function as a cellular cisplatin transporter UniProt ID: Q92887![]() Gene: ABCC2 ![]() Protein Sequence: FASTA Gene Sequence: FASTA SNPs: SNPJam Report ![]() References:
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| Comments |
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This project is supported by Genome Alberta & Genome Canada, a not-for-profit organization that is leading Canada's national genomics strategy with $600 million in funding from the federal government. This project is also supported in part by GenomeQuest, Inc., an enterprise genomic information company serving the life science community.