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Identification
NameArbutamine
Accession NumberDB01102  (APRD00802)
TypeSmall Molecule
GroupsApproved
Description

Arbutamine, administered through a closed-loop, computer-controlled drug-delivery system, is indicated to elicit acute cardiovascular responses, similar to those produced by exercise, in order to aid in diagnosing the presence or absence of coronary artery disease in patients who cannot exercise adequately .

Structure
Thumb
Synonyms
SynonymLanguageCode
ArbutaminaNot AvailableNot Available
ArbutaminumNot AvailableNot Available
Prescription ProductsNot Available
Generic Prescription ProductsNot Available
Over the Counter ProductsNot Available
International Brands
NameCompany
GenESANot Available
Brand mixturesNot Available
SaltsNot Available
CategoriesNot Available
CAS number128470-16-6
WeightAverage: 317.3795
Monoisotopic: 317.162708229
Chemical FormulaC18H23NO4
InChI KeyIIRWWTKISYTTBL-SFHVURJKSA-N
InChI
InChI=1S/C18H23NO4/c20-15-7-4-13(5-8-15)3-1-2-10-19-12-18(23)14-6-9-16(21)17(22)11-14/h4-9,11,18-23H,1-3,10,12H2/t18-/m0/s1
IUPAC Name
4-[(1R)-1-hydroxy-2-{[4-(4-hydroxyphenyl)butyl]amino}ethyl]benzene-1,2-diol
SMILES
O[C@@H](CNCCCCC1=CC=C(O)C=C1)C1=CC(O)=C(O)C=C1
Taxonomy
DescriptionThis compound belongs to the class of organic compounds known as catecholamines and derivatives. These are compounds containing 4-(2-Aminoethyl)pyrocatechol [4-(2-aminoethyl)benzene-1,2-diol] or a derivative thereof formed by substitution.
KingdomOrganic compounds
Super ClassBenzenoids
ClassBenzene and substituted derivatives
Sub ClassPhenols and derivatives
Direct ParentCatecholamines and derivatives
Alternative Parents
Substituents
  • Phenylbutylamine
  • Catecholamine
  • Aralkylamine
  • Secondary alcohol
  • 1,2-aminoalcohol
  • Secondary amine
  • Secondary aliphatic amine
  • Hydrocarbon derivative
  • Aromatic alcohol
  • Organooxygen compound
  • Organonitrogen compound
  • Amine
  • Alcohol
  • Aromatic homomonocyclic compound
Molecular FrameworkAromatic homomonocyclic compounds
External Descriptors
Pharmacology
IndicationUsed to elicit acute cardiovascular responses (cardiac stumulant), similar to those produced by exercise, in order to aid in diagnosing the presence or absence of coronary artery disease (CAD) in patients who cannot exercise adequately.
PharmacodynamicsNot Available
Mechanism of actionArbutamine is a synthetic catecholamine with positive chronotropic and inotropic properties. The chronotropic (increase in heart rate) and inotropic (increase in force of contraction) effects of arbutamine serve to mimic exercise by increasing cardiac work (producing stress) and provoke myocardial ischemia in patients with compromised coronary arteries. The increase in heart rate caused by arbutamine is thought to limit regional subendocardial perfusion, thereby limiting tissue oxygenation. In functional assays, arbutamine is more selective for beta-adrenergic receptors than for alpha-adrenergic receptors. The beta-agonist activity of arbutamine provides cardiac stress by increasing heart rate, cardiac contractility, and systolic blood pressure. The degree of hypotension that occurs for a given chronotropic activity is less with arbutamine than, for example, with isoproterenol because alpha receptor activity is retained.
AbsorptionNot Available
Volume of distributionNot Available
Protein binding58%
Metabolism

Primarily metabolized to methoxyarbutamine. Another possible metabolite is ketoarbutamine. The metabolites of arbutamine appear to have less pharmacological activity and a longer half-life and than the parental drug.

SubstrateEnzymesProduct
Arbutamine
Not Available
KetoarbutamineDetails
Arbutamine
Not Available
MethoxyarbutamineDetails
Route of eliminationNot Available
Half lifeElimination half-life is approximately 8 minutes.
ClearanceNot Available
ToxicityNot Available
Affected organisms
  • Humans and other mammals
PathwaysNot Available
SNP Mediated EffectsNot Available
SNP Mediated Adverse Drug ReactionsNot Available
ADMET
Predicted ADMET features
PropertyValueProbability
Human Intestinal Absorption+0.9464
Blood Brain Barrier-0.9026
Caco-2 permeable-0.7305
P-glycoprotein substrateSubstrate0.7596
P-glycoprotein inhibitor INon-inhibitor0.8011
P-glycoprotein inhibitor IINon-inhibitor0.5135
Renal organic cation transporterNon-inhibitor0.6511
CYP450 2C9 substrateNon-substrate0.8014
CYP450 2D6 substrateNon-substrate0.7951
CYP450 3A4 substrateNon-substrate0.5827
CYP450 1A2 substrateNon-inhibitor0.6669
CYP450 2C9 substrateNon-inhibitor0.9295
CYP450 2D6 substrateNon-inhibitor0.8282
CYP450 2C19 substrateNon-inhibitor0.9358
CYP450 3A4 substrateNon-inhibitor0.7648
CYP450 inhibitory promiscuityLow CYP Inhibitory Promiscuity0.9401
Ames testNon AMES toxic0.7687
CarcinogenicityNon-carcinogens0.943
BiodegradationNot ready biodegradable0.5579
Rat acute toxicity1.9867 LD50, mol/kg Not applicable
hERG inhibition (predictor I)Strong inhibitor0.6306
hERG inhibition (predictor II)Inhibitor0.7594
Pharmacoeconomics
ManufacturersNot Available
PackagersNot Available
Dosage formsNot Available
PricesNot Available
Patents
CountryPatent NumberApprovedExpires (estimated)
United States52344041993-08-102010-08-10
United States53959701995-03-072012-03-07
Properties
StateSolid
Experimental Properties
PropertyValueSource
logP2.9Not Available
Predicted Properties
PropertyValueSource
Water Solubility0.0842 mg/mLALOGPS
logP2.08ALOGPS
logP2ChemAxon
logS-3.6ALOGPS
pKa (Strongest Acidic)8.97ChemAxon
pKa (Strongest Basic)9.76ChemAxon
Physiological Charge1ChemAxon
Hydrogen Acceptor Count5ChemAxon
Hydrogen Donor Count5ChemAxon
Polar Surface Area92.95 Å2ChemAxon
Rotatable Bond Count8ChemAxon
Refractivity89.78 m3·mol-1ChemAxon
Polarizability35.54 Å3ChemAxon
Number of Rings2ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectra
Mass Spec (NIST)Not Available
SpectraNot Available
References
Synthesis ReferenceNot Available
General ReferenceNot Available
External Links
ATC CodesC01CA22
AHFS CodesNot Available
PDB EntriesNot Available
FDA labelNot Available
MSDSNot Available
Interactions
Drug InteractionsNot Available
Food InteractionsNot Available

Targets

1. Beta-1 adrenergic receptor

Kind: protein

Organism: Human

Pharmacological action: yes

Actions: agonist

Components

Name UniProt ID Details
Beta-1 adrenergic receptor P08588 Details

References:

  1. Overington JP, Al-Lazikani B, Hopkins AL: How many drug targets are there? Nat Rev Drug Discov. 2006 Dec;5(12):993-6. Pubmed
  2. Imming P, Sinning C, Meyer A: Drugs, their targets and the nature and number of drug targets. Nat Rev Drug Discov. 2006 Oct;5(10):821-34. Pubmed
  3. Abou-Mohamed G, Nagarajan R, Ibrahim TM, Caldwell RW: Characterization of the adrenergic activity of arbutamine, a novel agent for pharmacological stress testing. Cardiovasc Drugs Ther. 1996 Mar;10(1):39-47. Pubmed

2. Beta-2 adrenergic receptor

Kind: protein

Organism: Human

Pharmacological action: unknown

Actions: agonist

Components

Name UniProt ID Details
Beta-2 adrenergic receptor P07550 Details

References:

  1. Abou-Mohamed G, Nagarajan R, Ibrahim TM, Caldwell RW: Characterization of the adrenergic activity of arbutamine, a novel agent for pharmacological stress testing. Cardiovasc Drugs Ther. 1996 Mar;10(1):39-47. Pubmed

3. Beta-3 adrenergic receptor

Kind: protein

Organism: Human

Pharmacological action: unknown

Actions: agonist

Components

Name UniProt ID Details
Beta-3 adrenergic receptor P13945 Details

References:

  1. Abou-Mohamed G, Nagarajan R, Ibrahim TM, Caldwell RW: Characterization of the adrenergic activity of arbutamine, a novel agent for pharmacological stress testing. Cardiovasc Drugs Ther. 1996 Mar;10(1):39-47. Pubmed

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Drug created on June 13, 2005 07:24 / Updated on September 16, 2013 17:13