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Identification
Name Saprisartan
Accession Number DB01347
Type small molecule
Groups approved
Description

Saprisartan is an AT1 receptor antagonist. It is based on medications of losartan’s prototypical chemical structure. The mode of (functional) AT1 receptor antagonism has been characterized as insurmountable/noncompetitive for saprisartan. It is very likely that slow dissociation kinetics from the AT1 receptor underlie insurmountable antagonism.(10579749)

Structure Thumb
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Display: 2D Structure | 3D Structure
Synonyms Not Available
Salts Not Available
Brand names Not Available
Brand mixtures Not Available
Categories Not Available
CAS number 146623-69-0
Weight Average: 611.431
Monoisotopic: 610.049723164
Chemical Formula C25H22BrF3N4O4S
InChI Key InChIKey=DUEWVPTZCSAMNB-UHFFFAOYSA-N
InChI
InChI=1S/C25H22BrF3N4O4S/c1-2-19-31-21(14-8-9-14)22(24(30)34)33(19)12-13-7-10-18-16(11-13)20(26)23(37-18)15-5-3-4-6-17(15)32-38(35,36)25(27,28)29/h3-7,10-11,14,32H,2,8-9,12H2,1H3,(H2,30,34)
Plain Text
IUPAC Name
1-({3-bromo-2-[2-(trifluoromethane)sulfonamidophenyl]-1-benzofuran-5-yl}methyl)-4-cyclopropyl-2-ethyl-1H-imidazole-5-carboxamide
SMILES
CCC1=NC(C2CC2)=C(N1CC1=CC2=C(OC(=C2Br)C2=CC=CC=C2NS(=O)(=O)C(F)(F)F)C=C1)C(N)=O
Plain Text
Mass Spec Not Available
Taxonomy
Kingdom Organic
Classes
  • Benzofurans
Substructures
  • Benzofurans
  • Amino Ketones
  • Sulfonyls
  • Cyclopropane and Derivatives
  • Benzene and Derivatives
  • Carbamates and Derivatives
  • Aryl Halides
  • Imidazoles
  • Heterocyclic compounds
  • Aromatic compounds
  • Carboxamides and Derivatives
  • Sulfonamides
  • Furans
  • Imines
  • Carboxylic Acids and Derivatives
  • Cyanamides
  • Anilines
Pharmacology
Indication Saprisartan is used in the treatment of hypertension and heart failure.
Pharmacodynamics By inhibiting the angiotensin II receptor, this drug leades to a decrease in sodium reabsorption and a decrease in vasoconstriction. This has the combined effect of decreasing blood pressure.
Mechanism of action Saprisartan is a selective, potent, orally active and long-acting nonpeptide Angiotensin II type 1 (AT1) receptor antagonist. Saprisartan blocks the renin-angiotensin-aldosterone system (RAAS) at the level of the AT1 receptor that mediates most, if not all, of the important actions of Ang II. Saprisartan binds reversibly to the AT1 receptors in vascular smooth muscle and the adrenal gland. As angiotensin II is a vasoconstrictor, which also stimulates the synthesis and release of aldosterone, blockage of its effects results in decreases in systemic vascular resistance. AT1 receptor antagonists avoid the nonspecificity of the Ang I converting enzyme (ACE) inhibitors.
Absorption Not Available
Volume of distribution Not Available
Protein binding Not Available
Metabolism
Not Available
Route of elimination Not Available
Half life Not Available
Clearance Not Available
Toxicity Not Available
Affected organisms
  • Humans and other mammals
Pathways Not Available
Pharmacoeconomics
Manufacturers Not Available
Packagers Not Available
Dosage forms Not Available
Prices Not Available
Patents Not Available
Properties
State solid
Experimental Properties Not Available
Predicted Properties
Property Value Source
water solubility 1.51e-02 g/l ALOGPS
logP 5.89 ALOGPS
logP 3.35 ChemAxon
logS -4.6 ALOGPS
pKa (strongest acidic) 2.27 ChemAxon
pKa (strongest basic) 5.18 ChemAxon
physiological charge -1 ChemAxon
hydrogen acceptor count 4 ChemAxon
hydrogen donor count 2 ChemAxon
polar surface area 120.22 ChemAxon
rotatable bond count 8 ChemAxon
refractivity 137.15 ChemAxon
polarizability 54.2 ChemAxon
References
Synthesis Reference Not Available
General Reference Not Available
External Links
Resource Link
PubChem Compound 60921 Link_out
PubChem Substance 46508176 Link_out
ChemSpider 54892 Link_out
Therapeutic Targets Database DAP001257 Link_out
PharmGKB PA164746338 Link_out
ATC Codes Not Available
AHFS Codes Not Available
PDB Entries Not Available
FDA label Not Available
MSDS Not Available
Interactions
Drug Interactions
Drug Interaction
Amiloride Increased risk of hyperkalemia
Lithium The ARB increases serum levels of lithium
Potassium Increased risk of hyperkalemia
Triamterene Increased risk of hyperkalemia
Food Interactions Not Available
Targets

1. Type-1 angiotensin II receptor

Pharmacological action: yes
Actions: antagonist

Receptor for angiotensin II. Mediates its action by association with G proteins that activate a phosphatidylinositol- calcium second messenger system

Organism class: human
UniProt ID: P30556 Link_out
Gene: AGTR1 Link_out
Protein Sequence: FASTA
Gene Sequence: FASTA
SNPs: SNPJam Report Link_out

References:
  1. Timmermans PB: Pharmacological properties of angiotensin II receptor antagonists. Can J Cardiol. 1999 Nov;15 Suppl F:26F-8F. Pubmed
  2. Chen X, Ji ZL, Chen YZ: TTD: Therapeutic Target Database. Nucleic Acids Res. 2002 Jan 1;30(1):412-5. Pubmed

Comments
Drug created on June 30, 2007 12:15 / Updated on February 08, 2013 16:20