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Record Information
Version5.0
StatusDetected but not Quantified
Creation Date2021-09-11 17:07:44 UTC
Update Date2021-09-26 23:12:23 UTC
HMDB IDHMDB0256605
Secondary Accession NumbersNone
Metabolite Identification
Common NamePirlindole
DescriptionPirlindole, also known as pyrazidol, belongs to the class of organic compounds known as carbazoles. Carbazoles are compounds containing a three ring system containing a pyrrole ring fused on either side to a benzene ring. Pirlindole is a drug which is used for the treatment of major depression. it is being studied in the treatment of fibromyalgia pain syndrome. one study determined that the effect of pirlindole on sensorimotor performance while driving a motor vehicle shows many similarities to that of placebo. the drug appears to stimulate the central nervous system, rather than exhibit a sedative effect, like many antidepressants. because of its selective, reversible inhibition of monoamine oxidase (mao-a) and short half-life, unpleasant "cheese effects" are avoided. this refers to the effects of consuming tyramine-rich foods, such as cheese while medicated with monoamine oxidase inhibitors, leading to severe headaches and hypertension [l1395]. of the available evidence supports pirlindole as a safe and effective treatment option for the management of depression and fibromyalgia syndrome [l1394]. . Based on a literature review a significant number of articles have been published on Pirlindole. This compound has been identified in human blood as reported by (PMID: 31557052 ). Pirlindole is not a naturally occurring metabolite and is only found in those individuals exposed to this compound or its derivatives. Technically Pirlindole 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
PyrazidolKegg
Pirlindole hydrochlorideMeSH
PyrlindoleMeSH
1,10-Trimethylene-8-methyl-1,2,3,4-tetrahydropyrazino(1,2-a)indoleMeSH
PirlindolMeSH
Chemical FormulaC15H18N2
Average Molecular Weight226.323
Monoisotopic Molecular Weight226.146998588
IUPAC Name12-methyl-1,4-diazatetracyclo[7.6.1.0⁵,¹⁶.0¹⁰,¹⁵]hexadeca-9(16),10,12,14-tetraene
Traditional Namepirlindole
CAS Registry NumberNot Available
SMILES
CC1=CC=C2N3CCNC4CCCC(=C34)C2=C1
InChI Identifier
InChI=1S/C15H18N2/c1-10-5-6-14-12(9-10)11-3-2-4-13-15(11)17(14)8-7-16-13/h5-6,9,13,16H,2-4,7-8H2,1H3
InChI KeyIWVRVEIKCBFZNF-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as carbazoles. Carbazoles are compounds containing a three ring system containing a pyrrole ring fused on either side to a benzene ring.
KingdomOrganic compounds
Super ClassOrganoheterocyclic compounds
ClassIndoles and derivatives
Sub ClassCarbazoles
Direct ParentCarbazoles
Alternative Parents
Substituents
  • Carbazole
  • 3-alkylindole
  • Indole
  • Aralkylamine
  • Benzenoid
  • Heteroaromatic compound
  • Pyrrole
  • Azacycle
  • Secondary amine
  • Secondary aliphatic amine
  • Organopnictogen compound
  • Organonitrogen compound
  • Amine
  • Organic nitrogen compound
  • Hydrocarbon derivative
  • 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
logP2.1ALOGPS
logP3.1ChemAxon
logS-3.3ALOGPS
pKa (Strongest Basic)8.38ChemAxon
Physiological Charge1ChemAxon
Hydrogen Acceptor Count1ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area16.96 ŲChemAxon
Rotatable Bond Count0ChemAxon
Refractivity70.42 m³·mol⁻¹ChemAxon
Polarizability27.27 ųChemAxon
Number of Rings4ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleNoChemAxon
Predicted Chromatographic Properties

Predicted Collision Cross Sections

PredictorAdduct TypeCCS Value (Å2)Reference
DeepCCS[M-2H]-190.78630932474
DeepCCS[M+Na]+165.80630932474
AllCCS[M+H]+152.932859911
AllCCS[M+H-H2O]+148.932859911
AllCCS[M+NH4]+156.632859911
AllCCS[M+Na]+157.732859911
AllCCS[M-H]-161.832859911
AllCCS[M+Na-2H]-161.332859911
AllCCS[M+HCOO]-161.032859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
PirlindoleCC1=CC=C2N3CCNC4CCCC(=C34)C2=C13098.8Standard polar33892256
PirlindoleCC1=CC=C2N3CCNC4CCCC(=C34)C2=C12081.0Standard non polar33892256
PirlindoleCC1=CC=C2N3CCNC4CCCC(=C34)C2=C12331.1Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
Pirlindole,1TMS,isomer #1CC1=CC=C2C(=C1)C1=C3C(CCC1)N([Si](C)(C)C)CCN322321.3Semi standard non polar33892256
Pirlindole,1TMS,isomer #1CC1=CC=C2C(=C1)C1=C3C(CCC1)N([Si](C)(C)C)CCN322312.3Standard non polar33892256
Pirlindole,1TMS,isomer #1CC1=CC=C2C(=C1)C1=C3C(CCC1)N([Si](C)(C)C)CCN322847.2Standard polar33892256
Pirlindole,1TBDMS,isomer #1CC1=CC=C2C(=C1)C1=C3C(CCC1)N([Si](C)(C)C(C)(C)C)CCN322516.6Semi standard non polar33892256
Pirlindole,1TBDMS,isomer #1CC1=CC=C2C(=C1)C1=C3C(CCC1)N([Si](C)(C)C(C)(C)C)CCN322554.1Standard non polar33892256
Pirlindole,1TBDMS,isomer #1CC1=CC=C2C(=C1)C1=C3C(CCC1)N([Si](C)(C)C(C)(C)C)CCN323018.0Standard polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - Pirlindole GC-MS (Non-derivatized) - 70eV, Positivesplash10-0002-0940000000-2e2791b7eaea7b8d12f02017-08-28Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Pirlindole 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 - Pirlindole 10V, Positive-QTOFsplash10-004i-0090000000-b47c80f056435c73c9cf2017-07-26Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Pirlindole 20V, Positive-QTOFsplash10-004i-0390000000-d3c7a69c768a0fa430d22017-07-26Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Pirlindole 40V, Positive-QTOFsplash10-053r-1900000000-2ee84e540a8a6ef1b2752017-07-26Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Pirlindole 10V, Negative-QTOFsplash10-004i-0090000000-a1e53c7eb3ab23d5e49c2017-07-26Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Pirlindole 20V, Negative-QTOFsplash10-004i-0190000000-9b586959512f17b33c062017-07-26Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Pirlindole 40V, Negative-QTOFsplash10-0a4j-1940000000-a26d90ae81736b3620452017-07-26Wishart 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 IDDB09244
Phenol Explorer Compound IDNot Available
FooDB IDNot Available
KNApSAcK IDNot Available
Chemspider ID62039
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkPirlindole
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 ]