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Record Information
Version2.0
Created at2021-11-12 23:47:25 UTC
Updated at2026-02-12 20:02:08 UTC
NP-MRD IDNP0044052
Natural Product DOIhttps://doi.org/10.57994/6522
Secondary Accession NumbersNone
Natural Product Identification
Common Name3-epi-heliangin
Description3-Epi-heliangin belongs to the class of organic compounds known as germacranolides and derivatives. These are sesquiterpene lactones with a structure based on the germacranolide skeleton, characterized by a gamma lactone fused to a 1,7-dimethylcyclodec-1-ene moiety. 3-epi-heliangin was first documented in 2005 (PMID: 15921421). Based on a literature review very few articles have been published on 3-epi-heliangin.
Structure
Thumb
Synonyms
ValueSource
10-Epoxy-6betah,7alphah-helianga-4Z,11(13)-dien-6,12-olideChEBI
8beta-Tigloyloxy-3alpha-hydroxy-1alpha,10-epoxy-6betah,7alphah-helianga-4Z,11(13)-dien-6,12-olideChEBI
8b-Tigloyloxy-3a-hydroxy-1a,10-epoxy-6betah,7alphah-helianga-4Z,11(13)-dien-6,12-olideGenerator
8Β-tigloyloxy-3α-hydroxy-1α,10-epoxy-6betah,7alphah-helianga-4Z,11(13)-dien-6,12-olideGenerator
Chemical FormulaC20H26O6
Average Mass362.4220 Da
Monoisotopic Mass362.17294 Da
IUPAC Name(1R,2R,4R,6R,8R,9E,11R)-8-hydroxy-4,9-dimethyl-14-methylidene-13-oxo-5,12-dioxatricyclo[9.3.0.0^{4,6}]tetradec-9-en-2-yl (2E)-2-methylbut-2-enoate
Traditional Name(1R,2R,4R,6R,8R,9E,11R)-8-hydroxy-4,9-dimethyl-14-methylidene-13-oxo-5,12-dioxatricyclo[9.3.0.0^{4,6}]tetradec-9-en-2-yl (2E)-2-methylbut-2-enoate
CAS Registry NumberNot Available
SMILES
[H][C@@]12C[C@@H](O)\C(C)=C\[C@@]3([H])OC(=O)C(=C)[C@]3([H])[C@@H](C[C@@]1(C)O2)OC(=O)C(\C)=C\C
InChI Identifier
InChI=1S/C20H26O6/c1-6-10(2)18(22)25-15-9-20(5)16(26-20)8-13(21)11(3)7-14-17(15)12(4)19(23)24-14/h6-7,13-17,21H,4,8-9H2,1-3,5H3/b10-6+,11-7+/t13-,14-,15-,16-,17+,20-/m1/s1
InChI KeyDZTWAOVNNLDWNH-DRCJWTCISA-N
Experimental Spectra
Spectrum TypeDescriptionDepositor EmailDepositor OrganizationDepositorDeposition DateView
1D NMR13C NMR Spectrum (1D, 50 MHz, Chloroform-d, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 150 MHz, Chloroform-d, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 250 MHz, Chloroform-d, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 175 MHz, Chloroform-d, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 75 MHz, Chloroform-d, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 100 MHz, Chloroform-d, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 225 MHz, Chloroform-d, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 200 MHz, Chloroform-d, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 125 MHz, Chloroform-d, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 25 MHz, Chloroform-d, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 300 MHz, Chloroform-d, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 900 MHz, Chloroform-d, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 700 MHz, Chloroform-d, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 400 MHz, Chloroform-d, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 100 MHz, Chloroform-d, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 500 MHz, Chloroform-d, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 1000 MHz, Chloroform-d, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 800 MHz, Chloroform-d, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 200 MHz, Chloroform-d, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 600 MHz, Chloroform-d, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
Predicted Spectra
Not Available
Chemical Shift Submissions
Spectrum TypeDescriptionDepositor EmailDepositor OrganizationDepositorDeposition DateView
1D NMR1H NMR Spectrum (1D, 300.0, Chloroform-d, simulated)[email protected]Not AvailableNot Available2026-02-12View Spectrum
1D NMR13C NMR Spectrum (1D, 75.0, Chloroform-d, simulated)[email protected]Not AvailableNot Available2026-02-12View Spectrum
Species
Species of Origin
Species NameSourceReference
Eupatorium kiirunense
      Not Available
Chemical Taxonomy
Description Belongs to the class of organic compounds known as germacranolides and derivatives. These are sesquiterpene lactones with a structure based on the germacranolide skeleton, characterized by a gamma lactone fused to a 1,7-dimethylcyclodec-1-ene moiety.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassPrenol lipids
Sub ClassTerpene lactones
Direct ParentGermacranolides and derivatives
Alternative Parents
Substituents
  • Germacranolide
  • Sesquiterpenoid
  • Fatty acid ester
  • Dicarboxylic acid or derivatives
  • Gamma butyrolactone
  • Fatty acyl
  • Tetrahydrofuran
  • Enoate ester
  • Alpha,beta-unsaturated carboxylic ester
  • Secondary alcohol
  • Lactone
  • Carboxylic acid ester
  • Organoheterocyclic compound
  • Oxacycle
  • Ether
  • Oxirane
  • Dialkyl ether
  • Carboxylic acid derivative
  • Organooxygen compound
  • Hydrocarbon derivative
  • Organic oxide
  • Organic oxygen compound
  • Alcohol
  • Carbonyl group
  • Aliphatic heteropolycyclic compound
Molecular FrameworkAliphatic 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
logP1.45ALOGPS
logP2.41ChemAxon
logS-3.1ALOGPS
pKa (Strongest Acidic)14.52ChemAxon
pKa (Strongest Basic)-3ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count4ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area85.36 ŲChemAxon
Rotatable Bond Count3ChemAxon
Refractivity95.54 m³·mol⁻¹ChemAxon
Polarizability37.75 ųChemAxon
Number of Rings3ChemAxon
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 IDC00042125
Chemspider ID9828172
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound11653434
PDB IDNot Available
ChEBI ID65881
Good Scents IDNot Available
References
General References
  1. Shen YC, Lo KL, Kuo YH, Khalil AT: Cytotoxic sesquiterpene lactones from Eupatorium kiirunense, a coastal plant of Taiwan. J Nat Prod. 2005 May;68(5):745-50. doi: 10.1021/np040214k. [PubMed:15921421 ]
  2. DOI: 10.1021/np040214k
  3. PMID: 15921421