| Record Information |
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| Version | 2.0 |
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| Created at | 2021-11-12 23:47:25 UTC |
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| Updated at | 2026-02-12 20:02:08 UTC |
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| NP-MRD ID | NP0044052 |
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| Natural Product DOI | https://doi.org/10.57994/6522 |
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| Secondary Accession Numbers | None |
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| Natural Product Identification |
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| Common Name | 3-epi-heliangin |
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| Description | 3-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. |
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| Structure | [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=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 |
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| Synonyms | | Value | Source |
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| 10-Epoxy-6betah,7alphah-helianga-4Z,11(13)-dien-6,12-olide | ChEBI | | 8beta-Tigloyloxy-3alpha-hydroxy-1alpha,10-epoxy-6betah,7alphah-helianga-4Z,11(13)-dien-6,12-olide | ChEBI | | 8b-Tigloyloxy-3a-hydroxy-1a,10-epoxy-6betah,7alphah-helianga-4Z,11(13)-dien-6,12-olide | Generator | | 8Β-tigloyloxy-3α-hydroxy-1α,10-epoxy-6betah,7alphah-helianga-4Z,11(13)-dien-6,12-olide | Generator |
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| Chemical Formula | C20H26O6 |
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| Average Mass | 362.4220 Da |
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| Monoisotopic Mass | 362.17294 Da |
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| 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 |
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| 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 |
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| CAS Registry Number | Not Available |
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| 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 |
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| 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 |
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| InChI Key | DZTWAOVNNLDWNH-DRCJWTCISA-N |
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| Experimental Spectra |
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| | Spectrum Type | Description | Depositor Email | Depositor Organization | Depositor | Deposition Date | View |
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| 1D NMR | 13C NMR Spectrum (1D, 50 MHz, Chloroform-d, simulated) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 150 MHz, Chloroform-d, simulated) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 250 MHz, Chloroform-d, simulated) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 175 MHz, Chloroform-d, simulated) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 75 MHz, Chloroform-d, simulated) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 100 MHz, Chloroform-d, simulated) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 225 MHz, Chloroform-d, simulated) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 200 MHz, Chloroform-d, simulated) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 125 MHz, Chloroform-d, simulated) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 25 MHz, Chloroform-d, simulated) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 300 MHz, Chloroform-d, simulated) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 900 MHz, Chloroform-d, simulated) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 700 MHz, Chloroform-d, simulated) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 400 MHz, Chloroform-d, simulated) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 100 MHz, Chloroform-d, simulated) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 500 MHz, Chloroform-d, simulated) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 1000 MHz, Chloroform-d, simulated) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 800 MHz, Chloroform-d, simulated) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 200 MHz, Chloroform-d, simulated) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 600 MHz, Chloroform-d, simulated) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum |
| | Predicted Spectra |
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| Not Available | | Chemical Shift Submissions |
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| | Spectrum Type | Description | Depositor Email | Depositor Organization | Depositor | Deposition Date | View |
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| 1D NMR | 1H NMR Spectrum (1D, 300.0, Chloroform-d, simulated) | [email protected] | Not Available | Not Available | 2026-02-12 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 75.0, Chloroform-d, simulated) | [email protected] | Not Available | Not Available | 2026-02-12 | View Spectrum |
| | Species |
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| Species of Origin | | Species Name | Source | Reference |
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| Eupatorium kiirunense | | |
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| Chemical Taxonomy |
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| 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. |
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| Kingdom | Organic compounds |
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| Super Class | Lipids and lipid-like molecules |
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| Class | Prenol lipids |
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| Sub Class | Terpene lactones |
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| Direct Parent | Germacranolides and derivatives |
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| Alternative Parents | |
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| 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
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| Molecular Framework | Aliphatic heteropolycyclic compounds |
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| External Descriptors | |
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| Physical Properties |
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| State | Not Available |
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| Experimental Properties | | Property | Value | Reference |
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| Melting Point | Not Available | Not Available | | Boiling Point | Not Available | Not Available | | Water Solubility | Not Available | Not Available | | LogP | Not Available | Not Available |
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| Predicted Properties | |
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