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Record Information
Version5.0
StatusDetected but not Quantified
Creation Date2021-09-11 17:07:40 UTC
Update Date2021-09-26 23:12:23 UTC
HMDB IDHMDB0256604
Secondary Accession NumbersNone
Metabolite Identification
Common NamePiritrexim
DescriptionPiritrexim belongs to the class of organic compounds known as pyrido[2,3-d]pyrimidines. Pyrido[2,3-d]pyrimidines are compounds containing the pyrido[2,3-d]pyrimidine ring system, which is a pyridopyrimidine isomer with three ring nitrogen atoms at the 1-, 3-, and 8- position. Based on a literature review very few articles have been published on Piritrexim. This compound has been identified in human blood as reported by (PMID: 31557052 ). Piritrexim is not a naturally occurring metabolite and is only found in those individuals exposed to this compound or its derivatives. Technically Piritrexim is part of the human exposome. The exposome can be defined as the collection of all the exposures of an individual in a lifetime and how those exposures relate to health. An individual's exposure begins before birth and includes insults from environmental and occupational sources.
Structure
Thumb
Synonyms
ValueSource
TCMDC-137235BW-301UChEMBL
2,4-diamino-6-(2,5-Dimethoxybenzyl)-5-methylpyrido(2,3-D)pyrimidineMeSH
BW-301UMeSH
BW 301UMeSH
Piritrexim monohydrochlorideMeSH
Chemical FormulaC17H19N5O2
Average Molecular Weight325.3651
Monoisotopic Molecular Weight325.153874877
IUPAC Name6-[(2,5-dimethoxyphenyl)methyl]-5-methylpyrido[2,3-d]pyrimidine-2,4-diamine
Traditional Namepiritrexim
CAS Registry NumberNot Available
SMILES
COC1=CC(CC2=C(C)C3=C(N=C2)N=C(N)N=C3N)=C(OC)C=C1
InChI Identifier
InChI=1S/C17H19N5O2/c1-9-11(6-10-7-12(23-2)4-5-13(10)24-3)8-20-16-14(9)15(18)21-17(19)22-16/h4-5,7-8H,6H2,1-3H3,(H4,18,19,20,21,22)
InChI KeyVJXSSYDSOJBUAV-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as pyrido[2,3-d]pyrimidines. Pyrido[2,3-d]pyrimidines are compounds containing the pyrido[2,3-d]pyrimidine ring system, which is a pyridopyrimidine isomer with three ring nitrogen atoms at the 1-, 3-, and 8- position.
KingdomOrganic compounds
Super ClassOrganoheterocyclic compounds
ClassPyridopyrimidines
Sub ClassPyrido[2,3-d]pyrimidines
Direct ParentPyrido[2,3-d]pyrimidines
Alternative Parents
Substituents
  • Pyrido[2,3-d]pyrimidine
  • P-dimethoxybenzene
  • Dimethoxybenzene
  • Phenoxy compound
  • Anisole
  • Phenol ether
  • Methoxybenzene
  • Alkyl aryl ether
  • Aminopyrimidine
  • Methylpyridine
  • Monocyclic benzene moiety
  • Pyridine
  • Imidolactam
  • Benzenoid
  • Pyrimidine
  • Heteroaromatic compound
  • Ether
  • Azacycle
  • Primary amine
  • Organic nitrogen compound
  • Organooxygen compound
  • Organonitrogen compound
  • Hydrocarbon derivative
  • Organopnictogen compound
  • Organic oxygen compound
  • Amine
  • 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
logP2.23ALOGPS
logP2.44ChemAxon
logS-3.7ALOGPS
pKa (Strongest Acidic)16.06ChemAxon
pKa (Strongest Basic)3.91ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count7ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area109.17 ŲChemAxon
Rotatable Bond Count4ChemAxon
Refractivity95.58 m³·mol⁻¹ChemAxon
Polarizability34.37 ųChemAxon
Number of Rings3ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Predicted Chromatographic Properties

Predicted Collision Cross Sections

PredictorAdduct TypeCCS Value (Å2)Reference
DeepCCS[M+H]+187.03430932474
DeepCCS[M-H]-184.67630932474
DeepCCS[M-2H]-218.86130932474
DeepCCS[M+Na]+194.08830932474
AllCCS[M+H]+178.732859911
AllCCS[M+H-H2O]+175.332859911
AllCCS[M+NH4]+181.732859911
AllCCS[M+Na]+182.632859911
AllCCS[M-H]-182.132859911
AllCCS[M+Na-2H]-181.932859911
AllCCS[M+HCOO]-181.832859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
PiritreximCOC1=CC(CC2=C(C)C3=C(N=C2)N=C(N)N=C3N)=C(OC)C=C14229.6Standard polar33892256
PiritreximCOC1=CC(CC2=C(C)C3=C(N=C2)N=C(N)N=C3N)=C(OC)C=C12994.1Standard non polar33892256
PiritreximCOC1=CC(CC2=C(C)C3=C(N=C2)N=C(N)N=C3N)=C(OC)C=C13261.1Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
Piritrexim,1TMS,isomer #1COC1=CC=C(OC)C(CC2=CN=C3N=C(N[Si](C)(C)C)N=C(N)C3=C2C)=C13309.6Semi standard non polar33892256
Piritrexim,1TMS,isomer #1COC1=CC=C(OC)C(CC2=CN=C3N=C(N[Si](C)(C)C)N=C(N)C3=C2C)=C13016.3Standard non polar33892256
Piritrexim,1TMS,isomer #1COC1=CC=C(OC)C(CC2=CN=C3N=C(N[Si](C)(C)C)N=C(N)C3=C2C)=C14555.8Standard polar33892256
Piritrexim,1TMS,isomer #2COC1=CC=C(OC)C(CC2=CN=C3N=C(N)N=C(N[Si](C)(C)C)C3=C2C)=C13338.1Semi standard non polar33892256
Piritrexim,1TMS,isomer #2COC1=CC=C(OC)C(CC2=CN=C3N=C(N)N=C(N[Si](C)(C)C)C3=C2C)=C13045.9Standard non polar33892256
Piritrexim,1TMS,isomer #2COC1=CC=C(OC)C(CC2=CN=C3N=C(N)N=C(N[Si](C)(C)C)C3=C2C)=C14535.7Standard polar33892256
Piritrexim,2TMS,isomer #1COC1=CC=C(OC)C(CC2=CN=C3N=C(N[Si](C)(C)C)N=C(N[Si](C)(C)C)C3=C2C)=C13254.9Semi standard non polar33892256
Piritrexim,2TMS,isomer #1COC1=CC=C(OC)C(CC2=CN=C3N=C(N[Si](C)(C)C)N=C(N[Si](C)(C)C)C3=C2C)=C13048.0Standard non polar33892256
Piritrexim,2TMS,isomer #1COC1=CC=C(OC)C(CC2=CN=C3N=C(N[Si](C)(C)C)N=C(N[Si](C)(C)C)C3=C2C)=C14376.7Standard polar33892256
Piritrexim,2TMS,isomer #2COC1=CC=C(OC)C(CC2=CN=C3N=C(N([Si](C)(C)C)[Si](C)(C)C)N=C(N)C3=C2C)=C13215.4Semi standard non polar33892256
Piritrexim,2TMS,isomer #2COC1=CC=C(OC)C(CC2=CN=C3N=C(N([Si](C)(C)C)[Si](C)(C)C)N=C(N)C3=C2C)=C13091.9Standard non polar33892256
Piritrexim,2TMS,isomer #2COC1=CC=C(OC)C(CC2=CN=C3N=C(N([Si](C)(C)C)[Si](C)(C)C)N=C(N)C3=C2C)=C14297.4Standard polar33892256
Piritrexim,2TMS,isomer #3COC1=CC=C(OC)C(CC2=CN=C3N=C(N)N=C(N([Si](C)(C)C)[Si](C)(C)C)C3=C2C)=C13221.2Semi standard non polar33892256
Piritrexim,2TMS,isomer #3COC1=CC=C(OC)C(CC2=CN=C3N=C(N)N=C(N([Si](C)(C)C)[Si](C)(C)C)C3=C2C)=C13118.7Standard non polar33892256
Piritrexim,2TMS,isomer #3COC1=CC=C(OC)C(CC2=CN=C3N=C(N)N=C(N([Si](C)(C)C)[Si](C)(C)C)C3=C2C)=C14316.7Standard polar33892256
Piritrexim,3TMS,isomer #1COC1=CC=C(OC)C(CC2=CN=C3N=C(N([Si](C)(C)C)[Si](C)(C)C)N=C(N[Si](C)(C)C)C3=C2C)=C13161.5Semi standard non polar33892256
Piritrexim,3TMS,isomer #1COC1=CC=C(OC)C(CC2=CN=C3N=C(N([Si](C)(C)C)[Si](C)(C)C)N=C(N[Si](C)(C)C)C3=C2C)=C13155.3Standard non polar33892256
Piritrexim,3TMS,isomer #1COC1=CC=C(OC)C(CC2=CN=C3N=C(N([Si](C)(C)C)[Si](C)(C)C)N=C(N[Si](C)(C)C)C3=C2C)=C14064.1Standard polar33892256
Piritrexim,3TMS,isomer #2COC1=CC=C(OC)C(CC2=CN=C3N=C(N[Si](C)(C)C)N=C(N([Si](C)(C)C)[Si](C)(C)C)C3=C2C)=C13150.7Semi standard non polar33892256
Piritrexim,3TMS,isomer #2COC1=CC=C(OC)C(CC2=CN=C3N=C(N[Si](C)(C)C)N=C(N([Si](C)(C)C)[Si](C)(C)C)C3=C2C)=C13134.5Standard non polar33892256
Piritrexim,3TMS,isomer #2COC1=CC=C(OC)C(CC2=CN=C3N=C(N[Si](C)(C)C)N=C(N([Si](C)(C)C)[Si](C)(C)C)C3=C2C)=C14107.1Standard polar33892256
Piritrexim,4TMS,isomer #1COC1=CC=C(OC)C(CC2=CN=C3N=C(N([Si](C)(C)C)[Si](C)(C)C)N=C(N([Si](C)(C)C)[Si](C)(C)C)C3=C2C)=C13101.5Semi standard non polar33892256
Piritrexim,4TMS,isomer #1COC1=CC=C(OC)C(CC2=CN=C3N=C(N([Si](C)(C)C)[Si](C)(C)C)N=C(N([Si](C)(C)C)[Si](C)(C)C)C3=C2C)=C13244.9Standard non polar33892256
Piritrexim,4TMS,isomer #1COC1=CC=C(OC)C(CC2=CN=C3N=C(N([Si](C)(C)C)[Si](C)(C)C)N=C(N([Si](C)(C)C)[Si](C)(C)C)C3=C2C)=C13822.5Standard polar33892256
Piritrexim,1TBDMS,isomer #1COC1=CC=C(OC)C(CC2=CN=C3N=C(N[Si](C)(C)C(C)(C)C)N=C(N)C3=C2C)=C13485.1Semi standard non polar33892256
Piritrexim,1TBDMS,isomer #1COC1=CC=C(OC)C(CC2=CN=C3N=C(N[Si](C)(C)C(C)(C)C)N=C(N)C3=C2C)=C13197.3Standard non polar33892256
Piritrexim,1TBDMS,isomer #1COC1=CC=C(OC)C(CC2=CN=C3N=C(N[Si](C)(C)C(C)(C)C)N=C(N)C3=C2C)=C14519.6Standard polar33892256
Piritrexim,1TBDMS,isomer #2COC1=CC=C(OC)C(CC2=CN=C3N=C(N)N=C(N[Si](C)(C)C(C)(C)C)C3=C2C)=C13533.0Semi standard non polar33892256
Piritrexim,1TBDMS,isomer #2COC1=CC=C(OC)C(CC2=CN=C3N=C(N)N=C(N[Si](C)(C)C(C)(C)C)C3=C2C)=C13228.3Standard non polar33892256
Piritrexim,1TBDMS,isomer #2COC1=CC=C(OC)C(CC2=CN=C3N=C(N)N=C(N[Si](C)(C)C(C)(C)C)C3=C2C)=C14520.7Standard polar33892256
Piritrexim,2TBDMS,isomer #1COC1=CC=C(OC)C(CC2=CN=C3N=C(N[Si](C)(C)C(C)(C)C)N=C(N[Si](C)(C)C(C)(C)C)C3=C2C)=C13574.0Semi standard non polar33892256
Piritrexim,2TBDMS,isomer #1COC1=CC=C(OC)C(CC2=CN=C3N=C(N[Si](C)(C)C(C)(C)C)N=C(N[Si](C)(C)C(C)(C)C)C3=C2C)=C13448.0Standard non polar33892256
Piritrexim,2TBDMS,isomer #1COC1=CC=C(OC)C(CC2=CN=C3N=C(N[Si](C)(C)C(C)(C)C)N=C(N[Si](C)(C)C(C)(C)C)C3=C2C)=C14383.3Standard polar33892256
Piritrexim,2TBDMS,isomer #2COC1=CC=C(OC)C(CC2=CN=C3N=C(N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)N=C(N)C3=C2C)=C13579.6Semi standard non polar33892256
Piritrexim,2TBDMS,isomer #2COC1=CC=C(OC)C(CC2=CN=C3N=C(N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)N=C(N)C3=C2C)=C13397.7Standard non polar33892256
Piritrexim,2TBDMS,isomer #2COC1=CC=C(OC)C(CC2=CN=C3N=C(N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)N=C(N)C3=C2C)=C14259.9Standard polar33892256
Piritrexim,2TBDMS,isomer #3COC1=CC=C(OC)C(CC2=CN=C3N=C(N)N=C(N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)C3=C2C)=C13575.7Semi standard non polar33892256
Piritrexim,2TBDMS,isomer #3COC1=CC=C(OC)C(CC2=CN=C3N=C(N)N=C(N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)C3=C2C)=C13424.8Standard non polar33892256
Piritrexim,2TBDMS,isomer #3COC1=CC=C(OC)C(CC2=CN=C3N=C(N)N=C(N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)C3=C2C)=C14303.4Standard polar33892256
Piritrexim,3TBDMS,isomer #1COC1=CC=C(OC)C(CC2=CN=C3N=C(N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)N=C(N[Si](C)(C)C(C)(C)C)C3=C2C)=C13630.4Semi standard non polar33892256
Piritrexim,3TBDMS,isomer #1COC1=CC=C(OC)C(CC2=CN=C3N=C(N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)N=C(N[Si](C)(C)C(C)(C)C)C3=C2C)=C13674.1Standard non polar33892256
Piritrexim,3TBDMS,isomer #1COC1=CC=C(OC)C(CC2=CN=C3N=C(N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)N=C(N[Si](C)(C)C(C)(C)C)C3=C2C)=C14156.7Standard polar33892256
Piritrexim,3TBDMS,isomer #2COC1=CC=C(OC)C(CC2=CN=C3N=C(N[Si](C)(C)C(C)(C)C)N=C(N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)C3=C2C)=C13620.1Semi standard non polar33892256
Piritrexim,3TBDMS,isomer #2COC1=CC=C(OC)C(CC2=CN=C3N=C(N[Si](C)(C)C(C)(C)C)N=C(N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)C3=C2C)=C13659.3Standard non polar33892256
Piritrexim,3TBDMS,isomer #2COC1=CC=C(OC)C(CC2=CN=C3N=C(N[Si](C)(C)C(C)(C)C)N=C(N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)C3=C2C)=C14202.1Standard polar33892256
Piritrexim,4TBDMS,isomer #1COC1=CC=C(OC)C(CC2=CN=C3N=C(N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)N=C(N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)C3=C2C)=C13736.8Semi standard non polar33892256
Piritrexim,4TBDMS,isomer #1COC1=CC=C(OC)C(CC2=CN=C3N=C(N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)N=C(N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)C3=C2C)=C13877.1Standard non polar33892256
Piritrexim,4TBDMS,isomer #1COC1=CC=C(OC)C(CC2=CN=C3N=C(N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)N=C(N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)C3=C2C)=C14014.7Standard polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - Piritrexim GC-MS (Non-derivatized) - 70eV, Positivesplash10-001i-0294000000-b1a7f954377000defc122021-09-23Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Piritrexim 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 - Piritrexim 10V, Positive-QTOFsplash10-004i-0119000000-7def93ee1b90e123ba5e2017-07-26Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Piritrexim 20V, Positive-QTOFsplash10-004r-0669000000-387b33becef64d9140432017-07-26Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Piritrexim 40V, Positive-QTOFsplash10-03g0-0490000000-3b125d2db91b9ccd5cc22017-07-26Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Piritrexim 10V, Negative-QTOFsplash10-00di-0009000000-ea1e2dd3b7c268441dcd2017-07-26Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Piritrexim 20V, Negative-QTOFsplash10-00di-1239000000-20ed40568fc195dc05a12017-07-26Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Piritrexim 40V, Negative-QTOFsplash10-054o-4391000000-4b8b2e0b6ffbd8c0448f2017-07-26Wishart LabView Spectrum
Biological Properties
Cellular LocationsNot Available
Biospecimen Locations
  • Blood
Tissue LocationsNot Available
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
BloodDetected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedNormal details
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDDB03695
Phenol Explorer Compound IDNot Available
FooDB IDNot Available
KNApSAcK IDNot Available
Chemspider ID49108
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem CompoundNot Available
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. Barupal DK, Fiehn O: Generating the Blood Exposome Database Using a Comprehensive Text Mining and Database Fusion Approach. Environ Health Perspect. 2019 Sep;127(9):97008. doi: 10.1289/EHP4713. Epub 2019 Sep 26. [PubMed:31557052 ]