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Record Information
Version5.0
StatusExpected but not Quantified
Creation Date2017-11-21 17:43:26 UTC
Update Date2022-03-07 03:18:14 UTC
HMDB IDHMDB0240244
Secondary Accession NumbersNone
Metabolite Identification
Common NameTemelastine
DescriptionTemelastine, also known as SK and F 93944, belongs to the class of organic compounds known as pyrimidones. Pyrimidones are compounds that contain a pyrimidine ring, which bears a ketone. Pyrimidine is a 6-membered ring consisting of four carbon atoms and two nitrogen centers at the 1- and 3- ring positions. In humans, temelastine is involved in the temelastine h1-antihistamine action pathway. Temelastine is a primary metabolite. Primary metabolites are metabolically or physiologically essential metabolites. They are directly involved in an organism’s growth, development or reproduction. Based on a literature review very few articles have been published on Temelastine.
Structure
Data?1563892735
Synonyms
ValueSource
SK&F 93944HMDB
SK And F 93944HMDB
SK And F-93944HMDB
SKF 93944HMDB
TemelastineHMDB
Chemical FormulaC21H24BrN5O
Average Molecular Weight442.361
Monoisotopic Molecular Weight441.116423
IUPAC Name2-{[4-(5-bromo-3-methylpyridin-2-yl)butyl]amino}-5-[(6-methylpyridin-3-yl)methyl]-3,4-dihydropyrimidin-4-one
Traditional Nametemelastine
CAS Registry Number86181-42-2
SMILES
CC1=CC=C(CC2=CN=C(NCCCCC3=C(C)C=C(Br)C=N3)NC2=O)C=N1
InChI Identifier
InChI=1S/C21H24BrN5O/c1-14-9-18(22)13-25-19(14)5-3-4-8-23-21-26-12-17(20(28)27-21)10-16-7-6-15(2)24-11-16/h6-7,9,11-13H,3-5,8,10H2,1-2H3,(H2,23,26,27,28)
InChI KeyOGEAASSLWZDQBM-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as pyrimidones. Pyrimidones are compounds that contain a pyrimidine ring, which bears a ketone. Pyrimidine is a 6-membered ring consisting of four carbon atoms and two nitrogen centers at the 1- and 3- ring positions.
KingdomOrganic compounds
Super ClassOrganoheterocyclic compounds
ClassDiazines
Sub ClassPyrimidines and pyrimidine derivatives
Direct ParentPyrimidones
Alternative Parents
Substituents
  • Aminopyrimidine
  • Pyrimidone
  • Secondary aliphatic/aromatic amine
  • Methylpyridine
  • Aryl bromide
  • Aryl halide
  • Hydropyrimidine
  • Pyridine
  • Heteroaromatic compound
  • Lactam
  • Secondary amine
  • Azacycle
  • Organopnictogen compound
  • Organic oxygen compound
  • Amine
  • Organooxygen compound
  • Organonitrogen compound
  • Organobromide
  • Organohalogen compound
  • Organic nitrogen compound
  • Hydrocarbon derivative
  • Organic oxide
  • Aromatic heteromonocyclic compound
Molecular FrameworkAromatic heteromonocyclic compounds
External DescriptorsNot Available
Ontology
Not AvailableNot 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
logP3.28ALOGPS
logP3.22ChemAxon
logS-5ALOGPS
pKa (Strongest Acidic)8.06ChemAxon
pKa (Strongest Basic)5.61ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count5ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area79.27 ŲChemAxon
Rotatable Bond Count8ChemAxon
Refractivity113.06 m³·mol⁻¹ChemAxon
Polarizability44.46 ųChemAxon
Number of Rings3ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleYesChemAxon
Predicted Chromatographic Properties

Predicted Collision Cross Sections

PredictorAdduct TypeCCS Value (Å2)Reference
AllCCS[M+H]+202.60131661259
AllCCS[M-H]-198.27531661259
DeepCCS[M+H]+197.52730932474
DeepCCS[M-H]-194.97730932474
DeepCCS[M-2H]-229.3730932474
DeepCCS[M+Na]+204.90230932474
AllCCS[M+H]+202.632859911
AllCCS[M+H-H2O]+200.232859911
AllCCS[M+NH4]+204.832859911
AllCCS[M+Na]+205.432859911
AllCCS[M-H]-198.332859911
AllCCS[M+Na-2H]-199.032859911
AllCCS[M+HCOO]-200.032859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
TemelastineCC1=CC=C(CC2=CN=C(NCCCCC3=C(C)C=C(Br)C=N3)NC2=O)C=N14650.4Standard polar33892256
TemelastineCC1=CC=C(CC2=CN=C(NCCCCC3=C(C)C=C(Br)C=N3)NC2=O)C=N13409.3Standard non polar33892256
TemelastineCC1=CC=C(CC2=CN=C(NCCCCC3=C(C)C=C(Br)C=N3)NC2=O)C=N13862.0Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
Temelastine,1TMS,isomer #1CC1=CC=C(CC2=CN=C(N(CCCCC3=NC=C(Br)C=C3C)[Si](C)(C)C)[NH]C2=O)C=N13463.6Semi standard non polar33892256
Temelastine,1TMS,isomer #1CC1=CC=C(CC2=CN=C(N(CCCCC3=NC=C(Br)C=C3C)[Si](C)(C)C)[NH]C2=O)C=N13197.2Standard non polar33892256
Temelastine,1TMS,isomer #1CC1=CC=C(CC2=CN=C(N(CCCCC3=NC=C(Br)C=C3C)[Si](C)(C)C)[NH]C2=O)C=N14644.9Standard polar33892256
Temelastine,1TMS,isomer #2CC1=CC=C(CC2=CN=C(NCCCCC3=NC=C(Br)C=C3C)N([Si](C)(C)C)C2=O)C=N13620.3Semi standard non polar33892256
Temelastine,1TMS,isomer #2CC1=CC=C(CC2=CN=C(NCCCCC3=NC=C(Br)C=C3C)N([Si](C)(C)C)C2=O)C=N13212.7Standard non polar33892256
Temelastine,1TMS,isomer #2CC1=CC=C(CC2=CN=C(NCCCCC3=NC=C(Br)C=C3C)N([Si](C)(C)C)C2=O)C=N14739.7Standard polar33892256
Temelastine,2TMS,isomer #1CC1=CC=C(CC2=CN=C(N(CCCCC3=NC=C(Br)C=C3C)[Si](C)(C)C)N([Si](C)(C)C)C2=O)C=N13544.9Semi standard non polar33892256
Temelastine,2TMS,isomer #1CC1=CC=C(CC2=CN=C(N(CCCCC3=NC=C(Br)C=C3C)[Si](C)(C)C)N([Si](C)(C)C)C2=O)C=N13178.2Standard non polar33892256
Temelastine,2TMS,isomer #1CC1=CC=C(CC2=CN=C(N(CCCCC3=NC=C(Br)C=C3C)[Si](C)(C)C)N([Si](C)(C)C)C2=O)C=N14330.7Standard polar33892256
Temelastine,1TBDMS,isomer #1CC1=CC=C(CC2=CN=C(N(CCCCC3=NC=C(Br)C=C3C)[Si](C)(C)C(C)(C)C)[NH]C2=O)C=N13663.9Semi standard non polar33892256
Temelastine,1TBDMS,isomer #1CC1=CC=C(CC2=CN=C(N(CCCCC3=NC=C(Br)C=C3C)[Si](C)(C)C(C)(C)C)[NH]C2=O)C=N13393.4Standard non polar33892256
Temelastine,1TBDMS,isomer #1CC1=CC=C(CC2=CN=C(N(CCCCC3=NC=C(Br)C=C3C)[Si](C)(C)C(C)(C)C)[NH]C2=O)C=N14651.5Standard polar33892256
Temelastine,1TBDMS,isomer #2CC1=CC=C(CC2=CN=C(NCCCCC3=NC=C(Br)C=C3C)N([Si](C)(C)C(C)(C)C)C2=O)C=N13779.5Semi standard non polar33892256
Temelastine,1TBDMS,isomer #2CC1=CC=C(CC2=CN=C(NCCCCC3=NC=C(Br)C=C3C)N([Si](C)(C)C(C)(C)C)C2=O)C=N13408.5Standard non polar33892256
Temelastine,1TBDMS,isomer #2CC1=CC=C(CC2=CN=C(NCCCCC3=NC=C(Br)C=C3C)N([Si](C)(C)C(C)(C)C)C2=O)C=N14702.4Standard polar33892256
Temelastine,2TBDMS,isomer #1CC1=CC=C(CC2=CN=C(N(CCCCC3=NC=C(Br)C=C3C)[Si](C)(C)C(C)(C)C)N([Si](C)(C)C(C)(C)C)C2=O)C=N13930.8Semi standard non polar33892256
Temelastine,2TBDMS,isomer #1CC1=CC=C(CC2=CN=C(N(CCCCC3=NC=C(Br)C=C3C)[Si](C)(C)C(C)(C)C)N([Si](C)(C)C(C)(C)C)C2=O)C=N13544.6Standard non polar33892256
Temelastine,2TBDMS,isomer #1CC1=CC=C(CC2=CN=C(N(CCCCC3=NC=C(Br)C=C3C)[Si](C)(C)C(C)(C)C)N([Si](C)(C)C(C)(C)C)C2=O)C=N14380.9Standard polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - Temelastine GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Temelastine 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 - Temelastine 10V, Positive-QTOFsplash10-0006-0220900000-27c0d49a67eb91895cdc2019-02-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Temelastine 20V, Positive-QTOFsplash10-016u-1690400000-9dee478c37683ce817b42019-02-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Temelastine 40V, Positive-QTOFsplash10-0gb9-3920000000-0f648f74ca0e74e53c942019-02-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Temelastine 10V, Negative-QTOFsplash10-0006-0033900000-029790136c989f2000b72019-02-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Temelastine 20V, Negative-QTOFsplash10-014l-2291200000-31713515fbafc306f1c42019-02-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Temelastine 40V, Negative-QTOFsplash10-0006-8930000000-a685d36f6382eb65e67b2019-02-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Temelastine 10V, Negative-QTOFsplash10-0006-0000900000-1adba52cbe6f97528ba72021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Temelastine 20V, Negative-QTOFsplash10-0006-1012900000-63ab7fcd9bc26bf748ed2021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Temelastine 40V, Negative-QTOFsplash10-002f-6900000000-e14a5969a1a2fb9521492021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Temelastine 10V, Positive-QTOFsplash10-0006-0000900000-a5aee3bc8efcd715a0262021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Temelastine 20V, Positive-QTOFsplash10-0006-0435900000-3e1c36879dca59164caa2021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Temelastine 40V, Positive-QTOFsplash10-0fba-5971100000-cdfdb3d3b7715358a1c92021-09-24Wishart LabView Spectrum
Biological Properties
Cellular LocationsNot Available
Biospecimen LocationsNot Available
Tissue LocationsNot Available
Pathways
Normal Concentrations
Not Available
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 ID50101
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound55482
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 References
  1. Adam K, Oswald I: No effects on sleep of a histamine H1-receptor antagonist: temelastine. Br J Clin Pharmacol. 1986 Dec;22(6):718-20. [PubMed:2882773 ]