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Record Information
Version5.0
StatusDetected but not Quantified
Creation Date2021-09-11 14:41:20 UTC
Update Date2021-09-26 23:09:41 UTC
HMDB IDHMDB0255118
Secondary Accession NumbersNone
Metabolite Identification
Common NameN-desmethyl loperamide
Descriptiondesmethyl loperamide belongs to the class of organic compounds known as diphenylmethanes. Diphenylmethanes are compounds containing a diphenylmethane moiety, which consists of a methane wherein two hydrogen atoms are replaced by two phenyl groups. desmethyl loperamide is a secondary metabolite. Secondary metabolites are metabolically or physiologically non-essential metabolites that may serve a role as defense or signalling molecules. In some cases they are simply molecules that arise from the incomplete metabolism of other secondary metabolites. Based on a literature review a significant number of articles have been published on desmethyl loperamide. This compound has been identified in human blood as reported by (PMID: 31557052 ). N-desmethyl loperamide is not a naturally occurring metabolite and is only found in those individuals exposed to this compound or its derivatives. Technically N-desmethyl loperamide 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
Monodesmethyl loperamideChEBI
N-Desmethyl loperamideChEBI
(11C)N-Desmethyl-loperamideMeSH
(N-Methyl-11C)-desmethyl-loperamideMeSH
N-Demethyl-loperamideMeSH
N-DemethylloperamideMeSH
N-Desmethyl-loperamideMeSH
N-DesmethylloperamideMeSH
Chemical FormulaC28H31ClN2O2
Average Molecular Weight463.02
Monoisotopic Molecular Weight462.2074059
IUPAC Name4-[4-(4-chlorophenyl)-4-hydroxypiperidin-1-yl]-N-methyl-2,2-diphenylbutanimidic acid
Traditional Name4-[4-(4-chlorophenyl)-4-hydroxypiperidin-1-yl]-N-methyl-2,2-diphenylbutanimidic acid
CAS Registry NumberNot Available
SMILES
CN=C(O)C(CCN1CCC(O)(CC1)C1=CC=C(Cl)C=C1)(C1=CC=CC=C1)C1=CC=CC=C1
InChI Identifier
InChI=1S/C28H31ClN2O2/c1-30-26(32)28(23-8-4-2-5-9-23,24-10-6-3-7-11-24)18-21-31-19-16-27(33,17-20-31)22-12-14-25(29)15-13-22/h2-15,33H,16-21H2,1H3,(H,30,32)
InChI KeyZMOPTLXEYOVARP-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as diphenylmethanes. Diphenylmethanes are compounds containing a diphenylmethane moiety, which consists of a methane wherein two hydrogen atoms are replaced by two phenyl groups.
KingdomOrganic compounds
Super ClassBenzenoids
ClassBenzene and substituted derivatives
Sub ClassDiphenylmethanes
Direct ParentDiphenylmethanes
Alternative Parents
Substituents
  • Diphenylmethane
  • Phenylpiperidine
  • Phenylacetamide
  • Halobenzene
  • Aralkylamine
  • Chlorobenzene
  • N-acyl-amine
  • Aryl chloride
  • Piperidine
  • Aryl halide
  • Fatty amide
  • Fatty acyl
  • Tertiary alcohol
  • Tertiary amine
  • Tertiary aliphatic amine
  • Amino acid or derivatives
  • Secondary carboxylic acid amide
  • Carboxamide group
  • Carboxylic acid derivative
  • Azacycle
  • Organoheterocyclic compound
  • Organooxygen compound
  • Organic nitrogen compound
  • Amine
  • Hydrocarbon derivative
  • Alcohol
  • Organic oxide
  • Carbonyl group
  • Organopnictogen compound
  • Organic oxygen compound
  • Organonitrogen compound
  • Organohalogen compound
  • Organochloride
  • Aromatic heteromonocyclic compound
Molecular FrameworkAromatic heteromonocyclic compounds
External Descriptors
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
logP4.93ALOGPS
logP2.69ChemAxon
logS-5.9ALOGPS
pKa (Strongest Acidic)-3ChemAxon
pKa (Strongest Basic)12.62ChemAxon
Physiological Charge1ChemAxon
Hydrogen Acceptor Count4ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area56.06 ŲChemAxon
Rotatable Bond Count7ChemAxon
Refractivity145.56 m³·mol⁻¹ChemAxon
Polarizability51.14 ųChemAxon
Number of Rings4ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleYesChemAxon
Predicted Chromatographic Properties

Predicted Collision Cross Sections

PredictorAdduct TypeCCS Value (Å2)Reference
DeepCCS[M+H]+201.95330932474
DeepCCS[M-H]-199.59530932474
DeepCCS[M-2H]-232.4830932474
DeepCCS[M+Na]+208.12730932474
AllCCS[M+H]+211.532859911
AllCCS[M+H-H2O]+209.632859911
AllCCS[M+NH4]+213.332859911
AllCCS[M+Na]+213.832859911
AllCCS[M-H]-204.432859911
AllCCS[M+Na-2H]-204.932859911
AllCCS[M+HCOO]-205.732859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
N-desmethyl loperamideCN=C(O)C(CCN1CCC(O)(CC1)C1=CC=C(Cl)C=C1)(C1=CC=CC=C1)C1=CC=CC=C14544.6Standard polar33892256
N-desmethyl loperamideCN=C(O)C(CCN1CCC(O)(CC1)C1=CC=C(Cl)C=C1)(C1=CC=CC=C1)C1=CC=CC=C13542.8Standard non polar33892256
N-desmethyl loperamideCN=C(O)C(CCN1CCC(O)(CC1)C1=CC=C(Cl)C=C1)(C1=CC=CC=C1)C1=CC=CC=C13566.2Semi standard non polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - N-desmethyl loperamide GC-MS (Non-derivatized) - 70eV, Positivesplash10-0ukc-4592600000-5110bdb220d9aca22d772021-09-23Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - N-desmethyl loperamide GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - N-desmethyl loperamide GC-MS (TMS_1_1) - 70eV, PositiveNot Available2021-11-04Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - N-desmethyl loperamide GC-MS (TMS_1_2) - 70eV, PositiveNot Available2021-11-04Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - N-desmethyl loperamide GC-MS (TMS_2_1) - 70eV, PositiveNot Available2021-11-04Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - N-desmethyl loperamide GC-MS (TBDMS_1_1) - 70eV, PositiveNot Available2021-11-04Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - N-desmethyl loperamide GC-MS (TBDMS_1_2) - 70eV, PositiveNot Available2021-11-04Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - N-desmethyl loperamide GC-MS (TBDMS_2_1) - 70eV, PositiveNot Available2021-11-04Wishart LabView Spectrum

MS/MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - N-desmethyl loperamide 10V, Positive-QTOFsplash10-03dj-0000900000-85783572a6e1d2fb76572019-02-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - N-desmethyl loperamide 20V, Positive-QTOFsplash10-0gvk-0041900000-edb848068e30b129fddf2019-02-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - N-desmethyl loperamide 40V, Positive-QTOFsplash10-000l-0987300000-de4d736a4452017167442019-02-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - N-desmethyl loperamide 10V, Negative-QTOFsplash10-03di-0000900000-f65f01b38ae415ad2ce72019-02-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - N-desmethyl loperamide 20V, Negative-QTOFsplash10-03di-1102900000-ec5f39f9eea8966b04352019-02-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - N-desmethyl loperamide 40V, Negative-QTOFsplash10-08fr-6941100000-da9b5b5c661727ac6f9e2019-02-23Wishart 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 IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDNot Available
KNApSAcK IDNot Available
Chemspider ID7981704
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound9805944
PDB IDNot Available
ChEBI ID64043
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 ]