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Record Information
Version5.0
StatusExpected but not Quantified
Creation Date2013-07-09 16:12:32 UTC
Update Date2019-07-23 07:15:34 UTC
HMDB IDHMDB0061013
Secondary Accession Numbers
  • HMDB61013
Metabolite Identification
Common Namedesmethylastemizole
Descriptiondesmethylastemizole belongs to the class of organic compounds known as benzimidazoles. These are organic compounds containing a benzene ring fused to an imidazole ring (five member ring containing a nitrogen atom, 4 carbon atoms, and two double bonds). desmethylastemizole is a very strong basic compound (based on its pKa). It has been withdrawn from the market in most countries because of rare but potentially fatal side effects. desmethylastemizole is a metabolite of astemizole. Astemizole (R43512, marketed under the brand name Hismanal) was a second generation antihistamine drug which has a long duration of action. Astemizole was discovered by Janssen Pharmaceutica in 1977.
Structure
Data?1563866134
Synonyms
ValueSource
DesmethylasteizoleHMDB
DemethylastemizoleHMDB
Chemical FormulaC27H29FN4O
Average Molecular Weight444.5438
Monoisotopic Molecular Weight444.232539775
IUPAC Name4-{2-[4-({1-[(4-fluorophenyl)methyl]-1H-1,3-benzodiazol-2-yl}amino)piperidin-1-yl]ethyl}phenol
Traditional Name4-{2-[4-({1-[(4-fluorophenyl)methyl]-1,3-benzodiazol-2-yl}amino)piperidin-1-yl]ethyl}phenol
CAS Registry NumberNot Available
SMILES
OC1=CC=C(CCN2CCC(CC2)NC2=NC3=CC=CC=C3N2CC2=CC=C(F)C=C2)C=C1
InChI Identifier
InChI=1S/C27H29FN4O/c28-22-9-5-21(6-10-22)19-32-26-4-2-1-3-25(26)30-27(32)29-23-14-17-31(18-15-23)16-13-20-7-11-24(33)12-8-20/h1-12,23,33H,13-19H2,(H,29,30)
InChI KeyLAGYWHSFHIMTPE-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as benzimidazoles. These are organic compounds containing a benzene ring fused to an imidazole ring (five member ring containing a nitrogen atom, 4 carbon atoms, and two double bonds).
KingdomOrganic compounds
Super ClassOrganoheterocyclic compounds
ClassBenzimidazoles
Sub ClassNot Available
Direct ParentBenzimidazoles
Alternative Parents
Substituents
  • Benzimidazole
  • Phenethylamine
  • Fluorobenzene
  • Halobenzene
  • 1-hydroxy-2-unsubstituted benzenoid
  • Phenol
  • Secondary aliphatic/aromatic amine
  • Aralkylamine
  • Monocyclic benzene moiety
  • Aminoimidazole
  • N-substituted imidazole
  • Aryl fluoride
  • Piperidine
  • Aryl halide
  • Benzenoid
  • Azole
  • Heteroaromatic compound
  • Imidazole
  • Tertiary aliphatic amine
  • Tertiary amine
  • Secondary amine
  • Azacycle
  • Organic oxygen compound
  • Organopnictogen compound
  • Amine
  • Organic nitrogen compound
  • Hydrocarbon derivative
  • Organohalogen compound
  • Organofluoride
  • Organonitrogen compound
  • Organooxygen compound
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic compounds
External DescriptorsNot Available
Ontology
Physiological effectNot Available
Disposition
ProcessNot Available
RoleNot Available
Physical Properties
StateNot Available
Experimental Molecular Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
PropertyValueSource
Water Solubility0.012 g/LALOGPS
logP4.61ALOGPS
logP5.02ChemAxon
logS-5.1ALOGPS
pKa (Strongest Acidic)10.27ChemAxon
pKa (Strongest Basic)8.74ChemAxon
Physiological Charge1ChemAxon
Hydrogen Acceptor Count4ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area53.32 ŲChemAxon
Rotatable Bond Count7ChemAxon
Refractivity131.16 m³·mol⁻¹ChemAxon
Polarizability49.97 ųChemAxon
Number of Rings5ChemAxon
BioavailabilityYesChemAxon
Rule of FiveNoChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleYesChemAxon
Predicted Chromatographic Properties

Predicted Collision Cross Sections

PredictorAdduct TypeCCS Value (Å2)Reference
DeepCCS[M+H]+205.21130932474
DeepCCS[M-H]-202.85330932474
DeepCCS[M-2H]-236.42330932474
DeepCCS[M+Na]+211.65230932474
AllCCS[M+H]+209.832859911
AllCCS[M+H-H2O]+207.832859911
AllCCS[M+NH4]+211.632859911
AllCCS[M+Na]+212.232859911
AllCCS[M-H]-202.332859911
AllCCS[M+Na-2H]-202.232859911
AllCCS[M+HCOO]-202.432859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
desmethylastemizoleOC1=CC=C(CCN2CCC(CC2)NC2=NC3=CC=CC=C3N2CC2=CC=C(F)C=C2)C=C15285.3Standard polar33892256
desmethylastemizoleOC1=CC=C(CCN2CCC(CC2)NC2=NC3=CC=CC=C3N2CC2=CC=C(F)C=C2)C=C13581.5Standard non polar33892256
desmethylastemizoleOC1=CC=C(CCN2CCC(CC2)NC2=NC3=CC=CC=C3N2CC2=CC=C(F)C=C2)C=C14027.4Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
desmethylastemizole,1TMS,isomer #1C[Si](C)(C)OC1=CC=C(CCN2CCC(NC3=NC4=CC=CC=C4N3CC3=CC=C(F)C=C3)CC2)C=C13827.4Semi standard non polar33892256
desmethylastemizole,1TMS,isomer #2C[Si](C)(C)N(C1=NC2=CC=CC=C2N1CC1=CC=C(F)C=C1)C1CCN(CCC2=CC=C(O)C=C2)CC13925.5Semi standard non polar33892256
desmethylastemizole,2TMS,isomer #1C[Si](C)(C)OC1=CC=C(CCN2CCC(N(C3=NC4=CC=CC=C4N3CC3=CC=C(F)C=C3)[Si](C)(C)C)CC2)C=C13805.2Semi standard non polar33892256
desmethylastemizole,2TMS,isomer #1C[Si](C)(C)OC1=CC=C(CCN2CCC(N(C3=NC4=CC=CC=C4N3CC3=CC=C(F)C=C3)[Si](C)(C)C)CC2)C=C13418.6Standard non polar33892256
desmethylastemizole,2TMS,isomer #1C[Si](C)(C)OC1=CC=C(CCN2CCC(N(C3=NC4=CC=CC=C4N3CC3=CC=C(F)C=C3)[Si](C)(C)C)CC2)C=C14573.5Standard polar33892256
desmethylastemizole,1TBDMS,isomer #1CC(C)(C)[Si](C)(C)OC1=CC=C(CCN2CCC(NC3=NC4=CC=CC=C4N3CC3=CC=C(F)C=C3)CC2)C=C14074.5Semi standard non polar33892256
desmethylastemizole,1TBDMS,isomer #2CC(C)(C)[Si](C)(C)N(C1=NC2=CC=CC=C2N1CC1=CC=C(F)C=C1)C1CCN(CCC2=CC=C(O)C=C2)CC14142.9Semi standard non polar33892256
desmethylastemizole,2TBDMS,isomer #1CC(C)(C)[Si](C)(C)OC1=CC=C(CCN2CCC(N(C3=NC4=CC=CC=C4N3CC3=CC=C(F)C=C3)[Si](C)(C)C(C)(C)C)CC2)C=C14196.9Semi standard non polar33892256
desmethylastemizole,2TBDMS,isomer #1CC(C)(C)[Si](C)(C)OC1=CC=C(CCN2CCC(N(C3=NC4=CC=CC=C4N3CC3=CC=C(F)C=C3)[Si](C)(C)C(C)(C)C)CC2)C=C13751.2Standard non polar33892256
desmethylastemizole,2TBDMS,isomer #1CC(C)(C)[Si](C)(C)OC1=CC=C(CCN2CCC(N(C3=NC4=CC=CC=C4N3CC3=CC=C(F)C=C3)[Si](C)(C)C(C)(C)C)CC2)C=C14631.9Standard polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - desmethylastemizole GC-MS (Non-derivatized) - 70eV, Positivesplash10-0a4i-1922000000-c98f28a3104a2ef628bb2017-09-20Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - desmethylastemizole GC-MS (1 TMS) - 70eV, Positivesplash10-0a4i-2921110000-307f0f2a9fdd6b9674bc2017-10-06Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - desmethylastemizole GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum

MS/MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - desmethylastemizole 10V, Positive-QTOFsplash10-0002-0310900000-a2a9355703cb20dcc2542017-10-06Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - desmethylastemizole 20V, Positive-QTOFsplash10-0aba-0923300000-89fdcfe14846bb6682232017-10-06Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - desmethylastemizole 40V, Positive-QTOFsplash10-0a4i-3910000000-cdd49767367952de08612017-10-06Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - desmethylastemizole 10V, Negative-QTOFsplash10-0006-0000900000-29e6a2d75655e492f90b2017-10-06Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - desmethylastemizole 20V, Negative-QTOFsplash10-0006-0135900000-3667bce0df880c37b3862017-10-06Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - desmethylastemizole 40V, Negative-QTOFsplash10-01qc-2891000000-cb38bd3ecf181008836c2017-10-06Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - desmethylastemizole 10V, Positive-QTOFsplash10-0002-0000900000-65d2016bf991fea2a1ec2021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - desmethylastemizole 20V, Positive-QTOFsplash10-0002-0300900000-482987ad2b816152a4252021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - desmethylastemizole 40V, Positive-QTOFsplash10-00dl-4913600000-1a79a646880ac49018052021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - desmethylastemizole 10V, Negative-QTOFsplash10-0006-0000900000-e9b9bed3b367eff0a5452021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - desmethylastemizole 20V, Negative-QTOFsplash10-0006-0000900000-7e30f90ad320c448b3b72021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - desmethylastemizole 40V, Negative-QTOFsplash10-01q9-0971200000-d3fb0fef17824eb76aab2021-09-22Wishart LabView Spectrum
Biological Properties
Cellular Locations
  • Cytoplasm
  • Membrane (predicted from logP)
Biospecimen Locations
  • Blood
  • Urine
Tissue Locations
  • Kidney
  • Liver
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
BloodExpected but not QuantifiedNot QuantifiedNot AvailableNot AvailableNormal
      Not Available
details
UrineExpected but not QuantifiedNot QuantifiedNot AvailableNot AvailableNormal
      Not Available
details
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDNot Available
KNApSAcK IDNot Available
Chemspider IDNot Available
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound155805
PDB IDNot Available
ChEBI IDNot Available
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB IDNot Available
Good Scents IDNot Available
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General ReferencesNot Available