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Record Information
Version2.0
Created at2022-09-06 03:10:27 UTC
Updated at2022-09-06 03:10:27 UTC
NP-MRD IDNP0224683
Secondary Accession NumbersNone
Natural Product Identification
Common Name7'-ethylidene-3'-hydroxy-1-methoxy-5'-methyl-11'-oxa-5'-azaspiro[indole-3,2'-tricyclo[6.3.1.0⁴,⁹]dodecan]-2-one
Description7'-Ethylidene-3'-hydroxy-1-methoxy-5'-methyl-1,2-dihydro-11'-oxa-5'-azaspiro[indole-3,2'-tricyclo[6.3.1.0⁴,⁹]Dodecane]-2-one belongs to the class of organic compounds known as gelsemium alkaloids. These are alkaloids with a structure that is based on the tetracyclic gelsemium skeleton. These alkaloids contain an oxindole function and a cage-like, hydroaromatic residue which is believed to arise from an intermediate related to anhydrovobasinediol by formation of a 6,20 bond and rearrangement to an oxindole. The major alkaloids in this group are related to Gelsemine; however, a smaller group, characterized by Gelsedine, lack the 6,20 bond, and have also lost C-21. 7'-ethylidene-3'-hydroxy-1-methoxy-5'-methyl-11'-oxa-5'-azaspiro[indole-3,2'-tricyclo[6.3.1.0⁴,⁹]dodecan]-2-one is found in Gelsemium rankinii. 7'-Ethylidene-3'-hydroxy-1-methoxy-5'-methyl-1,2-dihydro-11'-oxa-5'-azaspiro[indole-3,2'-tricyclo[6.3.1.0⁴,⁹]Dodecane]-2-one is a very strong basic compound (based on its pKa).
Structure
Thumb
SynonymsNot Available
Chemical FormulaC21H26N2O4
Average Mass370.4490 Da
Monoisotopic Mass370.18926 Da
IUPAC Name7'-ethylidene-3'-hydroxy-1-methoxy-5'-methyl-1,2-dihydro-11'-oxa-5'-azaspiro[indole-3,2'-tricyclo[6.3.1.0⁴,⁹]dodecane]-2-one
Traditional Name7'-ethylidene-3'-hydroxy-1-methoxy-5'-methyl-11'-oxa-5'-azaspiro[indole-3,2'-tricyclo[6.3.1.0⁴,⁹]dodecane]-2-one
CAS Registry NumberNot Available
SMILES
CON1C(=O)C2(C3CC4C(CO3)C(C2O)N(C)CC4=CC)C2=CC=CC=C12
InChI Identifier
InChI=1S/C21H26N2O4/c1-4-12-10-22(2)18-14-11-27-17(9-13(12)14)21(19(18)24)15-7-5-6-8-16(15)23(26-3)20(21)25/h4-8,13-14,17-19,24H,9-11H2,1-3H3
InChI KeyZPUAPCRBIYPQLI-UHFFFAOYSA-N
Experimental Spectra
Not Available
Predicted Spectra
Spectrum TypeDescriptionDepositor IDDepositor OrganizationDepositorDeposition DateView
1D NMR13C NMR Spectrum (1D, 25 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 100 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 252 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 1000 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 50 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 200 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 75 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 300 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 101 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 400 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 126 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 500 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 151 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 600 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 176 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 700 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 201 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 800 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 226 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 900 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
Chemical Shift Submissions
Not Available
Species
Species of Origin
Species NameSourceReference
Gelsemium rankiniiLOTUS Database
Chemical Taxonomy
Description Belongs to the class of organic compounds known as gelsemium alkaloids. These are alkaloids with a structure that is based on the tetracyclic gelsemium skeleton. These alkaloids contain an oxindole function and a cage-like, hydroaromatic residue which is believed to arise from an intermediate related to anhydrovobasinediol by formation of a 6,20 bond and rearrangement to an oxindole. The major alkaloids in this group are related to Gelsemine; however, a smaller group, characterized by Gelsedine, lack the 6,20 bond, and have also lost C-21.
KingdomOrganic compounds
Super ClassAlkaloids and derivatives
ClassGelsemium alkaloids
Sub ClassNot Available
Direct ParentGelsemium alkaloids
Alternative Parents
Substituents
  • Gelsemium skeleton
  • Indole or derivatives
  • Oxepane
  • Aralkylamine
  • Oxane
  • Piperidine
  • Benzenoid
  • Cyclic alcohol
  • Amino acid or derivatives
  • Tertiary aliphatic amine
  • Tertiary amine
  • Secondary alcohol
  • 1,2-aminoalcohol
  • Oxacycle
  • Organoheterocyclic compound
  • Azacycle
  • Carboxylic acid derivative
  • Dialkyl ether
  • Ether
  • Hydrocarbon derivative
  • Organic nitrogen compound
  • Organonitrogen compound
  • Organooxygen compound
  • Organic oxygen compound
  • Alcohol
  • Carbonyl group
  • Amine
  • Organopnictogen compound
  • Organic oxide
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic compounds
External DescriptorsNot Available
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
logP1.69ALOGPS
logP1.1ChemAxon
logS-1.7ALOGPS
pKa (Strongest Acidic)13.67ChemAxon
pKa (Strongest Basic)8.75ChemAxon
Physiological Charge1ChemAxon
Hydrogen Acceptor Count5ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area62.24 ŲChemAxon
Rotatable Bond Count1ChemAxon
Refractivity101.3 m³·mol⁻¹ChemAxon
Polarizability39.5 ųChemAxon
Number of Rings5ChemAxon
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 CompoundNot Available
PDB IDNot Available
ChEBI IDNot Available
Good Scents IDNot Available
References
General References
  1. LOTUS database [Link]