Hmdb loader
Record Information
Version5.0
StatusDetected but not Quantified
Creation Date2021-09-11 12:53:47 UTC
Update Date2021-09-26 23:07:38 UTC
HMDB IDHMDB0253981
Secondary Accession NumbersNone
Metabolite Identification
Common NameLaquinimod
DescriptionLaquinimod belongs to the class of organic compounds known as aromatic anilides. These are aromatic compounds containing an anilide group in which the carboxamide group is substituted with an aromatic group. They have the general structure RNC(=O)R', where R= benzene, and R = aryl group. Laquinimod is an extremely weak basic (essentially neutral) compound (based on its pKa). However, the response to a given dose was discrepant between both studies. Phase III studies for MS started in December 2007. On May 7, 2013 laquinimod was approved by the Russian Ministry of Health (the FDA analog) as a treatment for relapsing-remitting multiple sclerosis (RRMS) under the brand name Nerventra. The compound has been investigated in two Phase II trials using successive magnetic resonance scans (MRI). Laquinimod seems to be able to reduce the MS disease activity on MRI. In 2011, Teva announced its clinical trials involving laquinimod had failed, being unable to significantly reduce relapses in MS among patients beyond a placebo. It is being investigated as an oral treatment for multiple sclerosis (MS). Laquinimod is an experimental immunomodulator developed by Active Biotech and Teva. However, the final results of above-mentioned phase III trial proved oral laquinimod administered once daily slowed the progression of disability and reduced the rate of relapse in patients with relapsing–remitting multiple sclerosis. Laquinimod is the successor of Active Biotech's failed experimental immunomodulator linomide. This compound has been identified in human blood as reported by (PMID: 31557052 ). Laquinimod is not a naturally occurring metabolite and is only found in those individuals exposed to this compound or its derivatives. Technically Laquinimod 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
LaquinimodMeSH
Chemical FormulaC19H17ClN2O3
Average Molecular Weight356.81
Monoisotopic Molecular Weight356.0927701
IUPAC Name5-chloro-N-ethyl-4-hydroxy-1-methyl-2-oxo-N-phenyl-1,2-dihydroquinoline-3-carboxamide
Traditional Namelaquinimod
CAS Registry NumberNot Available
SMILES
CCN(C(=O)C1=C(O)C2=C(C=CC=C2Cl)N(C)C1=O)C1=CC=CC=C1
InChI Identifier
InChI=1S/C19H17ClN2O3/c1-3-22(12-8-5-4-6-9-12)19(25)16-17(23)15-13(20)10-7-11-14(15)21(2)18(16)24/h4-11,23H,3H2,1-2H3
InChI KeyGKWPCEFFIHSJOE-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as aromatic anilides. These are aromatic compounds containing an anilide group in which the carboxamide group is substituted with an aromatic group. They have the general structure RNC(=O)R', where R= benzene, and R = aryl group.
KingdomOrganic compounds
Super ClassBenzenoids
ClassBenzene and substituted derivatives
Sub ClassAnilides
Direct ParentAromatic anilides
Alternative Parents
Substituents
  • Aromatic anilide
  • Quinoline-3-carboxamide
  • Haloquinoline
  • Dihydroquinolone
  • Hydroxyquinoline
  • Chloroquinoline
  • Dihydroquinoline
  • Quinoline
  • Pyridine carboxylic acid or derivatives
  • Hydroxypyridine
  • Pyridinone
  • Aryl chloride
  • Aryl halide
  • Pyridine
  • Heteroaromatic compound
  • Vinylogous amide
  • Tertiary carboxylic acid amide
  • Vinylogous acid
  • Lactam
  • Carboxamide group
  • Azacycle
  • Carboxylic acid derivative
  • Organoheterocyclic compound
  • Organooxygen compound
  • Organonitrogen compound
  • Organochloride
  • Organohalogen compound
  • Hydrocarbon derivative
  • Organic oxide
  • Organopnictogen compound
  • Organic nitrogen compound
  • Organic oxygen 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
logP2.77ALOGPS
logP2.55ChemAxon
logS-3.9ALOGPS
pKa (Strongest Acidic)5.02ChemAxon
pKa (Strongest Basic)-2.2ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count3ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area60.85 ŲChemAxon
Rotatable Bond Count3ChemAxon
Refractivity97.31 m³·mol⁻¹ChemAxon
Polarizability35.31 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]+186.0230932474
DeepCCS[M-H]-183.66230932474
DeepCCS[M-2H]-217.88730932474
DeepCCS[M+Na]+193.11430932474
AllCCS[M+H]+181.132859911
AllCCS[M+H-H2O]+178.032859911
AllCCS[M+NH4]+184.032859911
AllCCS[M+Na]+184.832859911
AllCCS[M-H]-182.432859911
AllCCS[M+Na-2H]-181.832859911
AllCCS[M+HCOO]-181.332859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
LaquinimodCCN(C(=O)C1=C(O)C2=C(C=CC=C2Cl)N(C)C1=O)C1=CC=CC=C13884.9Standard polar33892256
LaquinimodCCN(C(=O)C1=C(O)C2=C(C=CC=C2Cl)N(C)C1=O)C1=CC=CC=C12831.0Standard non polar33892256
LaquinimodCCN(C(=O)C1=C(O)C2=C(C=CC=C2Cl)N(C)C1=O)C1=CC=CC=C12983.2Semi standard non polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - Laquinimod GC-MS (Non-derivatized) - 70eV, Positivesplash10-002u-4769000000-ba48e04fdbcae687b02d2021-09-24Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Laquinimod GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Laquinimod GC-MS (TMS_1_1) - 70eV, PositiveNot Available2021-11-04Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Laquinimod GC-MS (TBDMS_1_1) - 70eV, PositiveNot Available2021-11-04Wishart LabView Spectrum

MS/MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Laquinimod 10V, Positive-QTOFsplash10-0a4i-0019000000-6da9532401f7200345322017-07-25Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Laquinimod 20V, Positive-QTOFsplash10-052r-0196000000-6b66e60245cd26bd71df2017-07-25Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Laquinimod 40V, Positive-QTOFsplash10-052r-2980000000-d71fda13dfd6db23a46a2017-07-25Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Laquinimod 10V, Negative-QTOFsplash10-0a4i-0059000000-a5394a4f4836947e90192017-07-26Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Laquinimod 20V, Negative-QTOFsplash10-0a4i-1395000000-d1da2ec9b5ba36212fd02017-07-26Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Laquinimod 40V, Negative-QTOFsplash10-0c00-2910000000-3a625d8bae29b8d0d1762017-07-26Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Laquinimod 10V, Positive-QTOFsplash10-0a4r-0059000000-320c8fba478e8dc8a1b22021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Laquinimod 20V, Positive-QTOFsplash10-000i-0194000000-e98d561a2b084be50b832021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Laquinimod 40V, Positive-QTOFsplash10-000i-1390000000-5aba097cf2b15d51f4042021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Laquinimod 10V, Negative-QTOFsplash10-0a4i-0009000000-f281a2e503abace86d622021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Laquinimod 20V, Negative-QTOFsplash10-0a4i-3295000000-9db6a44f01c32b259f4e2021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Laquinimod 40V, Negative-QTOFsplash10-001l-9312000000-35292d9dfbd3df1cdfaf2021-10-12Wishart 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 IDDB06685
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 LinkLaquinimod
METLIN IDNot Available
PubChem Compound54677946
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 ]