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Record Information
Version2.0
Created at2022-09-07 06:46:16 UTC
Updated at2022-09-07 06:46:16 UTC
NP-MRD IDNP0245621
Secondary Accession NumbersNone
Natural Product Identification
Common Name4-epi-kaurenic acid
DescriptionKaur-16-en-19-oic acid, also known as argyrophilic acid, 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. 4-epi-kaurenic acid is found in Sphagneticola trilobata. 4-epi-kaurenic acid was first documented in 2021 (PMID: 34263530). Based on a literature review a small amount of articles have been published on Kaur-16-en-19-oic acid (PMID: 34510371) (PMID: 34063939) (PMID: 33705895) (PMID: 33645029).
Structure
Thumb
Synonyms
ValueSource
Kaur-16-en-19-OateGenerator
Argyrophilic acidMeSH
ent-Kaur-16-en-19-Oic acidMeSH
Chemical FormulaC20H30O2
Average Mass302.4580 Da
Monoisotopic Mass302.22458 Da
IUPAC NameNot Available
Traditional NameNot Available
CAS Registry NumberNot Available
SMILES
C[C@@]12CCC[C@@](C)([C@H]1CC[C@@]13CC(CC[C@@H]21)C(=C)C3)C(O)=O
InChI Identifier
InChI=1S/C20H30O2/c1-13-11-20-10-7-15-18(2,16(20)6-5-14(13)12-20)8-4-9-19(15,3)17(21)22/h14-16H,1,4-12H2,2-3H3,(H,21,22)/t14?,15-,16-,18+,19-,20+/m0/s1
InChI KeyNIKHGUQULKYIGE-LFVVLLIQSA-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
Sphagneticola trilobataLOTUS 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
  • Monocarboxylic acid or derivatives
  • Carboxylic acid
  • Carboxylic acid derivative
  • Organic oxygen compound
  • Organic oxide
  • Hydrocarbon derivative
  • Organooxygen compound
  • Carbonyl group
  • Aliphatic homopolycyclic compound
Molecular FrameworkAliphatic homopolycyclic 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
HMDB IDNot Available
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FoodDB IDNot Available
KNApSAcK IDC00000877
Chemspider ID140571
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound159887
PDB IDNot Available
ChEBI IDNot Available
Good Scents IDNot Available
References
General References
  1. Silva ML, Costa-Silva TA, Antar GM, Tempone AG, Lago JHG: Chemical Constituents from Aerial Parts of Baccharis sphenophylla and Effects against Intracellular Forms of Trypanosoma cruzi. Chem Biodivers. 2021 Oct;18(10):e2100466. doi: 10.1002/cbdv.202100466. Epub 2021 Aug 4. [PubMed:34263530 ]
  2. Maeda M, Suzuki M, Fuchino H, Tanaka N, Kobayashi T, Isogai R, Batubara I, Iswantini D, Matsuno M, Kawahara N, Koketsu M, Hamamoto A, Takemori H: Diversity of Adenostemma lavenia, multi-potential herbs, and its kaurenoic acid composition between Japan and Taiwan. J Nat Med. 2022 Jan;76(1):132-143. doi: 10.1007/s11418-021-01565-3. Epub 2021 Sep 12. [PubMed:34510371 ]
  3. Herrera-Acevedo C, Flores-Gaspar A, Scotti L, Mendonca-Junior FJB, Scotti MT, Coy-Barrera E: Identification of Kaurane-Type Diterpenes as Inhibitors of Leishmania Pteridine Reductase I. Molecules. 2021 May 21;26(11):3076. doi: 10.3390/molecules26113076. [PubMed:34063939 ]
  4. Xu J, Wang Z, Sun L, Wang Y, Wang Y, He X: (3alpha)-3-(tiglinoyloxy)-ent-kaur-16-en-19-oic acid, isolated from Wedelia trilobata L., exerts an anti-inflammatory effect via the modulation of NF-kappaB, MAPK and mTOR pathway and autophagy in LPS-stimulated macrophages. Toxicol In Vitro. 2021 Jun;73:105139. doi: 10.1016/j.tiv.2021.105139. Epub 2021 Mar 9. [PubMed:33705895 ]
  5. Liu QY, Yang HF, Feng S, Hu Y: [Study on chemical constituents of Wedelia trilobata]. Zhongguo Zhong Yao Za Zhi. 2021 Feb;46(3):630-634. doi: 10.19540/j.cnki.cjcmm.20200628.203. [PubMed:33645029 ]
  6. LOTUS database [Link]