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Record Information
Version2.0
Created at2021-04-21 17:21:37 UTC
Updated at2021-07-26 15:24:10 UTC
NP-MRD IDNP0023969
Secondary Accession NumbersNone
Natural Product Identification
Common Name3-Epikatonic acid
Provided ByJEOL DatabaseJEOL Logo
Description3-Epikatonic acid, also known as 3-epikatonate, belongs to the class of organic compounds known as pentacyclic triterpenoids. These are terpene molecules containing six isoprene units. In higher plants, the biosynthesis of terpenoids proceeds via two independent pathways localized indifferent cellular compartments. The mevalonate (MVA) pathway in the cytoplasm is responsible for the biosynthesis of sesquiterpenes and triterpenes such as 3-epikatonic acid. In the cytoplasm-localized MVA pathway, three molecules of acetyl-coenzyme A are used to produce MVA. Two ATP react with MVA to produce mevalonate diphosphate, followed by decarboxylation and dehydration with the involvement of a third molecule of ATP to give isopentenyl pyrophosphate(IPP). IPP is isomerized to the other isoprene unit, dimethylallyl pyrophosphate (DMAPP), byisopentenyl-diphosphate-D-isomerase (EC 5.3.3.2). IPP and DMAPP are active hemiterpeneintermediates (C5) in the pathways leading to more complicated terpenoids. DMAPP can produce the fundamental sesquiterpene precursor farnesyl diphosphate (FPP), with the successive addition of two further IPPs. Two molecules of FPP are joined tail-to-tail to yield theprecursor of triterpenes, squalene (C30), from which other triterpenes arise (PMID: 17250858 ).3-Epikatonic acid was first isolated from the plant Cyamopsis tetragonoloba, which is also known as guar or cluster bean (https://Doi.Org/10.1002/Mrc.1009). Cyamopsis tetragonoloba is anannual legume and the source of guar gum. Later it was isolated from Tripterygium wilfordii, Trypterygium hypolaucum and then Austroplenckia populnea. 3-Epikatonic acid has been shown to have antimalarial and anti-trypanosome activity (T. (S.) Cruzi) (PMID: 12048549 ).
Structure
Data?1623995043
Synonyms
ValueSource
3-EpikatonateGenerator
3-Hydroxy-(3beta,20alpha)-olean-12-en-29-Oic acidHMDB
Epikatonic acidHMDB
Chemical FormulaC30H48O3
Average Mass456.7003 Da
Monoisotopic Mass456.36035 Da
IUPAC Name(2R,4aS,6aS,6bR,8aR,10S,12aR,12bR,14bR)-10-hydroxy-2,4a,6a,6b,9,9,12a-heptamethyl-1,2,3,4,4a,5,6,6a,6b,7,8,8a,9,10,11,12,12a,12b,13,14b-icosahydropicene-2-carboxylic acid
Traditional Name3-Epikatonic acid
CAS Registry Number76035-62-6
SMILES
[H][C@@]12C[C@@](C)(CC[C@]1(C)CC[C@]1(C)C2=CC[C@]2([H])[C@@]3(C)CC[C@H](O)C(C)(C)[C@]3([H])CC[C@@]12C)C(O)=O
InChI Identifier
InChI=1S/C30H48O3/c1-25(2)21-10-13-30(7)22(28(21,5)12-11-23(25)31)9-8-19-20-18-27(4,24(32)33)15-14-26(20,3)16-17-29(19,30)6/h8,20-23,31H,9-18H2,1-7H3,(H,32,33)/t20-,21-,22+,23-,26+,27+,28-,29+,30+/m0/s1
InChI KeyJZFSMVXQUWRSIW-FWXFQHTDSA-N
Experimental Spectra
Predicted Spectra
Not Available
Chemical Shift Submissions
Not Available
Species
Species of Origin
Chemical Taxonomy
Description Belongs to the class of organic compounds known as triterpenoids. These are terpene molecules containing six isoprene units.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassPrenol lipids
Sub ClassTriterpenoids
Direct ParentTriterpenoids
Alternative ParentsNot Available
SubstituentsNot Available
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
logP7.19ALOGPS
logP6.59ChemAxon
logS-5.9ALOGPS
pKa (Strongest Acidic)4.62ChemAxon
pKa (Strongest Basic)-0.84ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count3ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area57.53 ŲChemAxon
Rotatable Bond Count1ChemAxon
Refractivity133.62 m³·mol⁻¹ChemAxon
Polarizability54.64 ųChemAxon
Number of Rings5ChemAxon
BioavailabilityYesChemAxon
Rule of FiveNoChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
HMDB IDHMDB0034655
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FoodDB IDFDB013179
KNApSAcK IDC00036544
Chemspider ID8609651
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound10434225
PDB IDNot Available
ChEBI IDNot Available
Good Scents IDrw1844901
References
General References
  1. Duarte LP, Vieira Filho SA, Silva GD, de Sousa JR, Pinto Ada S: Anti-trypanosomal activity of pentacyclic triterpenes isolated from Austroplenckia populnea (Celastraceae). Rev Inst Med Trop Sao Paulo. 2002 Mar-Apr;44(2):109-12. doi: 10.1590/s0036-46652002000200010. [PubMed:12048549 ]
  2. G. D. F. Silva, L. P. Duarte, S. A. Vieira Filho, A. C. Doriguetto, Y. P. Mascarenhas, J. Ellena, E. E. Castellano, A. B. Cota (2002). G. D. F. Silva, L. P. Duarte, S. A. Vieira Filho, A. C. Doriguetto, Y. P. Mascarenhas, J. Ellena, E. E. Castellano, A. B. Cota. Epikatonic acid from Austroplenckia populnea: structure elucidation by 2D NMR spectroscopy and X‐ray crystallography. Magn. Reson. Chem. 40(5), 366-370. Magnetic Resonance in Chemistry.
  3. JEOL [Link]