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Record Information
Version2.0
Created at2024-02-22 12:16:32 UTC
Updated at2024-09-03 04:19:35 UTC
NP-MRD IDNP0332550
Natural Product DOIhttps://doi.org/10.57994/1807
Secondary Accession NumbersNone
Natural Product Identification
Common Name5,5′-dimethyl-4,4′,7,7′-tetramethoxy-8,8′-bicoumarin
Description(+)-Kotanin belongs to the class of organic compounds known as coumarins and derivatives. 5,5′-dimethyl-4,4′,7,7′-tetramethoxy-8,8′-bicoumarin was first documented in 1971 (PMID: 5551701). These are polycyclic aromatic compounds containing a 1-benzopyran moiety with a ketone group at the C2 carbon atom (1-benzopyran-2-one) (+)-kotanin is an extremely weak basic (essentially neutral) compound (based on its pKa) (PMID: 17315249).
Structure
Thumb
Synonyms
ValueSource
(+)-4,4',7,7'-Tetramethoxy-5,5'-dimethyl-2H,2'H-8,8'-bichromene-2,2'-dioneChEBI
(AS)-(+)-4,4',7,7'-tetramethoxy-5,5'-dimethyl-2H,2'H-8,8'-bichromene-2,2'-dioneChEBI
(p)-4,4',7,7'-Tetramethoxy-5,5'-dimethyl-2H,2'H-8,8'-bichromene-2,2'-dioneChEBI
(S)-(+)-4,4',7,7'-Tetramethoxy-5,5'-dimethyl-2H,2'H-8,8'-bichromene-2,2'-dioneChEBI
(S)-4,4',7,7'-Tetramethoxy-5,5'-dimethyl-2H,2'H-8,8'-bichromene-2,2'-dioneChEBI
KotaninChEBI
Chemical FormulaC24H22O8
Average Mass438.4320 Da
Monoisotopic Mass438.13147 Da
IUPAC Name8-(4,7-dimethoxy-5-methyl-2-oxo-2H-chromen-8-yl)-4,7-dimethoxy-5-methyl-2H-chromen-2-one
Traditional Name8-(4,7-dimethoxy-5-methyl-2-oxochromen-8-yl)-4,7-dimethoxy-5-methylchromen-2-one
CAS Registry NumberNot Available
SMILES
COC1=CC(=O)OC2=C1C(C)=CC(OC)=C2C1=C(OC)C=C(C)C2=C1OC(=O)C=C2OC
InChI Identifier
InChI=1S/C24H22O8/c1-11-7-13(27-3)21(23-19(11)15(29-5)9-17(25)31-23)22-14(28-4)8-12(2)20-16(30-6)10-18(26)32-24(20)22/h7-10H,1-6H3
InChI KeyCSJOUDOXDHMIAH-UHFFFAOYSA-N
Experimental Spectra
Spectrum TypeDescriptionDepositor EmailDepositor OrganizationDepositorDeposition DateView
1D NMR13C NMR Spectrum (1D, 151 MHz, C2D6OS, experimental)yijing0212@163.com南方医科大学Jing Yi2024-02-22View Spectrum
1D NMR1H NMR Spectrum (1D, 600 MHz, C2D6OS, experimental)yijing0212@163.com南方医科大学Jing Yi2024-02-22View Spectrum
Predicted Spectra
Spectrum TypeDescriptionDepositor IDDepositor OrganizationDepositorDeposition DateView
1D NMR13C NMR Spectrum (1D, 25 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 100 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 252 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 1000 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 50 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 200 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 75 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 300 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 101 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 400 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 126 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 500 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 151 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 600 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 176 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 700 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 201 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 800 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 226 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 900 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
Chemical Shift Submissions
Not Available
Species
Species of OriginNot Available
Chemical Taxonomy
Description Belongs to the class of organic compounds known as coumarins and derivatives. These are polycyclic aromatic compounds containing a 1-benzopyran moiety with a ketone group at the C2 carbon atom (1-benzopyran-2-one).
KingdomOrganic compounds
Super ClassPhenylpropanoids and polyketides
ClassCoumarins and derivatives
Sub ClassNot Available
Direct ParentCoumarins and derivatives
Alternative Parents
Substituents
  • Coumarin
  • Benzopyran
  • 1-benzopyran
  • Anisole
  • Alkyl aryl ether
  • Pyranone
  • Pyran
  • Benzenoid
  • Heteroaromatic compound
  • Vinylogous ester
  • Lactone
  • Organoheterocyclic compound
  • Oxacycle
  • Ether
  • Organic oxygen compound
  • Organooxygen compound
  • Hydrocarbon derivative
  • Organic oxide
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic compounds
External Descriptors
Physical Properties
StateNot Available
Experimental Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Predicted Properties
PropertyValueSource
logP3.32ALOGPS
logP2.67ChemAxon
logS-4.9ALOGPS
pKa (Strongest Basic)-4.3ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count6ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area89.52 ŲChemAxon
Rotatable Bond Count4ChemAxon
Refractivity118.47 m³·mol⁻¹ChemAxon
Polarizability44.67 ųChemAxon
Number of Rings4ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
HMDB IDNot Available
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FoodDB IDNot Available
KNApSAcK IDNot Available
Chemspider IDNot Available
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound34059
PDB IDNot Available
ChEBI ID64454
Good Scents IDNot Available
References
General References
  1. Huttel W, Muller M: Regio- and stereoselective intermolecular oxidative phenol coupling in kotanin biosynthesis by Aspergillus niger. Chembiochem. 2007 Mar 26;8(5):521-9. doi: 10.1002/cbic.200600434. [PubMed:17315249 ]
  2. Buchi G, Klaubert DH, Shank RC, Weinreb SM, Wogan GN: Structure and synthesis of kotanin and desmethylkotanin, metabolites of Aspergillus glaucus. J Org Chem. 1971 Apr 23;36(8):1143-7. doi: 10.1021/jo00807a028. [PubMed:5551701 ]