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Record Information
Version5.0
StatusDetected but not Quantified
Creation Date2021-09-11 18:05:20 UTC
Update Date2021-09-26 23:13:28 UTC
HMDB IDHMDB0257230
Secondary Accession NumbersNone
Metabolite Identification
Common NameRilmakalim
Description1-[6-(benzenesulfonyl)-3-hydroxy-2,2-dimethyl-3,4-dihydro-2H-1-benzopyran-4-yl]pyrrolidin-2-one belongs to the class of organic compounds known as 2,2-dimethyl-1-benzopyrans. These are organic compounds containing a 1-benzopyran moiety that carries two methyl groups at the 2-position. Based on a literature review very few articles have been published on 1-[6-(benzenesulfonyl)-3-hydroxy-2,2-dimethyl-3,4-dihydro-2H-1-benzopyran-4-yl]pyrrolidin-2-one. This compound has been identified in human blood as reported by (PMID: 31557052 ). Rilmakalim is not a naturally occurring metabolite and is only found in those individuals exposed to this compound or its derivatives. Technically Rilmakalim 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
1-[6-(Benzenesulphonyl)-3-hydroxy-2,2-dimethyl-3,4-dihydro-2H-1-benzopyran-4-yl]pyrrolidin-2-oneGenerator
Chemical FormulaC21H23NO5S
Average Molecular Weight401.48
Monoisotopic Molecular Weight401.129694019
IUPAC Name1-[6-(benzenesulfonyl)-3-hydroxy-2,2-dimethyl-3,4-dihydro-2H-1-benzopyran-4-yl]pyrrolidin-2-one
Traditional Name1-[6-(benzenesulfonyl)-3-hydroxy-2,2-dimethyl-3,4-dihydro-1-benzopyran-4-yl]pyrrolidin-2-one
CAS Registry NumberNot Available
SMILES
CC1(C)OC2=C(C=C(C=C2)S(=O)(=O)C2=CC=CC=C2)C(C1O)N1CCCC1=O
InChI Identifier
InChI=1S/C21H23NO5S/c1-21(2)20(24)19(22-12-6-9-18(22)23)16-13-15(10-11-17(16)27-21)28(25,26)14-7-4-3-5-8-14/h3-5,7-8,10-11,13,19-20,24H,6,9,12H2,1-2H3
InChI KeyLKAQWOWWTKFLNX-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as 2,2-dimethyl-1-benzopyrans. These are organic compounds containing a 1-benzopyran moiety that carries two methyl groups at the 2-position.
KingdomOrganic compounds
Super ClassOrganoheterocyclic compounds
ClassBenzopyrans
Sub Class1-benzopyrans
Direct Parent2,2-dimethyl-1-benzopyrans
Alternative Parents
Substituents
  • 2,2-dimethyl-1-benzopyran
  • Benzenesulfonyl group
  • Alkyl aryl ether
  • Benzenoid
  • N-alkylpyrrolidine
  • 2-pyrrolidone
  • Pyrrolidone
  • Monocyclic benzene moiety
  • Tertiary carboxylic acid amide
  • Sulfonyl
  • Sulfone
  • Pyrrolidine
  • Secondary alcohol
  • Lactam
  • Carboxamide group
  • Oxacycle
  • Azacycle
  • Ether
  • Carboxylic acid derivative
  • Organic nitrogen compound
  • Organic oxygen compound
  • Organopnictogen compound
  • Organic oxide
  • Hydrocarbon derivative
  • Organosulfur compound
  • Organooxygen compound
  • Organonitrogen compound
  • Carbonyl group
  • Alcohol
  • 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
logP1.91ALOGPS
logP2.12ChemAxon
logS-3.4ALOGPS
pKa (Strongest Acidic)13.24ChemAxon
pKa (Strongest Basic)-1.4ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count5ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area83.91 ŲChemAxon
Rotatable Bond Count3ChemAxon
Refractivity104.48 m³·mol⁻¹ChemAxon
Polarizability40.83 ųChemAxon
Number of Rings4ChemAxon
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]+190.05730932474
DeepCCS[M-H]-187.69930932474
DeepCCS[M-2H]-221.73130932474
DeepCCS[M+Na]+196.94130932474
AllCCS[M+H]+194.032859911
AllCCS[M+H-H2O]+191.432859911
AllCCS[M+NH4]+196.532859911
AllCCS[M+Na]+197.132859911
AllCCS[M-H]-192.632859911
AllCCS[M+Na-2H]-192.732859911
AllCCS[M+HCOO]-192.932859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
RilmakalimCC1(C)OC2=C(C=C(C=C2)S(=O)(=O)C2=CC=CC=C2)C(C1O)N1CCCC1=O5212.0Standard polar33892256
RilmakalimCC1(C)OC2=C(C=C(C=C2)S(=O)(=O)C2=CC=CC=C2)C(C1O)N1CCCC1=O3370.4Standard non polar33892256
RilmakalimCC1(C)OC2=C(C=C(C=C2)S(=O)(=O)C2=CC=CC=C2)C(C1O)N1CCCC1=O3454.3Semi standard non polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - Rilmakalim GC-MS (Non-derivatized) - 70eV, Positivesplash10-00ou-1429000000-3cf0980e176c6ecc89112021-09-24Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Rilmakalim GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Rilmakalim GC-MS (TMS_1_1) - 70eV, PositiveNot Available2021-11-05Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Rilmakalim GC-MS (TBDMS_1_1) - 70eV, PositiveNot Available2021-11-05Wishart 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 ID8062968
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound9887295
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 ]