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Record Information
Version2.0
Created at2022-09-08 06:39:32 UTC
Updated at2022-09-08 06:39:32 UTC
NP-MRD IDNP0263469
Secondary Accession NumbersNone
Natural Product Identification
Common Nameent-kaurane
DescriptionEnt-kaurane belongs to the class of organic compounds known as kaurane diterpenoids. These are diterpene alkaloids with a structure that is based on the kaurane skeleton. Kaurane is a tetracyclic compound that arises by cyclisation of a pimarane precursor followed by rearrangement. It possesses a [3,2,1]-bicyclic ring system with C15-C16 bridge connected to C13, forming the five-membered ring D. ent-kaurane is found in Aristolochia triangularis. ent-kaurane was first documented in 2022 (PMID: 35944737). Based on a literature review a small amount of articles have been published on ent-kaurane (PMID: 36050280) (PMID: 35957755) (PMID: 35948501) (PMID: 35929396).
Structure
Thumb
Synonyms
ValueSource
ent-KaureneMeSH
ent KauraneMeSH
ent KaureneMeSH
ent-KaurenesMeSH
Kaurane diterpenoidMeSH
Diterpenes, kauraneMeSH
Diterpenoid, kauraneMeSH
Kaurane diterpenoidsMeSH
Diterpenoids, kauraneMeSH
ent-KauranesMeSH
KauraneMeSH
Kaurane diterpenesMeSH
KauranesMeSH
Chemical FormulaC20H34
Average Mass274.4920 Da
Monoisotopic Mass274.26605 Da
IUPAC Name(1R,4R,9R,10R,13R,14S)-5,5,9,14-tetramethyltetracyclo[11.2.1.0^{1,10}.0^{4,9}]hexadecane
Traditional Name(1R,4R,9R,10R,13R,14S)-5,5,9,14-tetramethyltetracyclo[11.2.1.0^{1,10}.0^{4,9}]hexadecane
CAS Registry NumberNot Available
SMILES
C[C@H]1C[C@]23C[C@H]1CC[C@H]2[C@]1(C)CCCC(C)(C)[C@H]1CC3
InChI Identifier
InChI=1S/C20H34/c1-14-12-20-11-8-16-18(2,3)9-5-10-19(16,4)17(20)7-6-15(14)13-20/h14-17H,5-13H2,1-4H3/t14-,15+,16+,17-,19+,20+/m0/s1
InChI KeyIVZWRQBQDVHDNG-KUIXFMFUSA-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
Aristolochia triangularisLOTUS Database
Chemical Taxonomy
Description Belongs to the class of organic compounds known as kaurane diterpenoids. These are diterpene alkaloids with a structure that is based on the kaurane skeleton. Kaurane is a tetracyclic compound that arises by cyclisation of a pimarane precursor followed by rearrangement. It possesses a [3,2,1]-bicyclic ring system with C15-C16 bridge connected to C13, forming the five-membered ring D.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassPrenol lipids
Sub ClassDiterpenoids
Direct ParentKaurane diterpenoids
Alternative Parents
Substituents
  • Kaurane diterpenoid
  • Polycyclic hydrocarbon
  • Saturated hydrocarbon
  • Hydrocarbon
  • Aliphatic homopolycyclic compound
Molecular FrameworkAliphatic homopolycyclic 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
logP5.96ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count0ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area0 ŲChemAxon
Rotatable Bond Count0ChemAxon
Refractivity85.87 m³·mol⁻¹ChemAxon
Polarizability35.06 ųChemAxon
Number of Rings4ChemAxon
BioavailabilityYesChemAxon
Rule of FiveNoChemAxon
Ghose FilterNoChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleNoChemAxon
HMDB IDNot Available
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FoodDB IDNot Available
KNApSAcK IDC00039112
Chemspider ID21865264
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound65390
PDB IDNot Available
ChEBI ID36540
Good Scents IDNot Available
References
General References
  1. Zhao H, Sun L, Kong C, Mei W, Dai H, Xu F, Huang S: Phytochemical and pharmacological review of diterpenoids from the genus Euphorbia Linn (2012-2021). J Ethnopharmacol. 2022 Nov 15;298:115574. doi: 10.1016/j.jep.2022.115574. Epub 2022 Aug 6. [PubMed:35944737 ]
  2. Wei WJ, Zhu B, Si Y, Guo T, Kang J, Dai L: Cytotoxic ent-Kaurane Diterpenoids from Rabdosia Rubescens. Chem Biodivers. 2022 Oct;19(10):e202200497. doi: 10.1002/cbdv.202200497. Epub 2022 Sep 23. [PubMed:36050280 ]
  3. Li FR, Lin X, Yang Q, Tan NH, Dong LB: Efficient production of clerodane and ent-kaurane diterpenes through truncated artificial pathways in Escherichia coli. Beilstein J Org Chem. 2022 Jul 21;18:881-888. doi: 10.3762/bjoc.18.89. eCollection 2022. [PubMed:35957755 ]
  4. Jin S, Zhao X, Ma D: Divergent Total Syntheses of Napelline-Type C20-Diterpenoid Alkaloids: (-)-Napelline, (+)-Dehydronapelline, (-)-Songorine, (-)-Songoramine, (-)-Acoapetaldine D, and (-)-Liangshanone. J Am Chem Soc. 2022 Aug 24;144(33):15355-15362. doi: 10.1021/jacs.2c06738. Epub 2022 Aug 10. [PubMed:35948501 ]
  5. van Breemen RB, Muchiri RN: Affinity selection-mass spectrometry in the discovery of anti-SARS-CoV-2 compounds. Mass Spectrom Rev. 2022 Aug 5:e21800. doi: 10.1002/mas.21800. [PubMed:35929396 ]
  6. LOTUS database [Link]