Np mrd loader

Record Information
Version1.0
Created at2022-09-12 10:17:35 UTC
Updated at2022-09-12 10:17:35 UTC
NP-MRD IDNP0327584
Secondary Accession NumbersNone
Natural Product Identification
Common Nameα-elaterin
DescriptionCucurbitacin E, also known as alpha-elaterin or α-elaterine, belongs to the class of organic compounds known as cucurbitacins. These are polycyclic compounds containing the tetracyclic cucurbitane nucleus skeleton, 19-(10->9b)-abeo-10alanost-5-ene (also known as 9b-methyl-19-nor lanosta-5-ene), with a variety of oxygenation functionalities at different positions. Thus, cucurbitacin e is considered to be a sterol. α-elaterin is found in Bacopa monnieri, Begonia nantoensis, Bolbostemma paniculatum, Bryonia alba, Bryonia cretica, Bryonia dioica, Bryonia verrucosa, Citrullus lanatus, Conobea scoparioides, Cucumis sativus, Cucurbita foetidissima, Cucurbita maxima, Cucurbita pepo, Ecballium elaterium, Helicteres angustifolia, Iberis amara, Iberis umbellata, Luffa operculata, Morierina montana, Nernstia mexicana and Wilbrandia ebracteata. It was first documented in 1958 (PMID: 13611647). Based on a literature review a significant number of articles have been published on cucurbitacin E (PMID: 19177898) (PMID: 15908139) (PMID: 19816711) (PMID: 20110807) (PMID: 20347305) (PMID: 4384331).
Structure
Thumb
Synonyms
ValueSource
(23E)-25-Acetyloxy-2,16alpha,20-trihydroxy-9beta-methyl-19-nor-10alpha-lanosta-1,5,23-triene-3,11,22-trioneChEBI
2,16alpha,20,25-Tetrahydroxy-9-methyl-19-nor-9beta,10alpha-lanosta-1,5,23-triene-3,11,22-trione 25-acetateChEBI
alpha-ElaterinChEBI
alpha-ElaterineChEBI
(23E)-25-Acetyloxy-2,16a,20-trihydroxy-9b-methyl-19-nor-10a-lanosta-1,5,23-triene-3,11,22-trioneGenerator
(23E)-25-Acetyloxy-2,16α,20-trihydroxy-9β-methyl-19-nor-10α-lanosta-1,5,23-triene-3,11,22-trioneGenerator
2,16a,20,25-Tetrahydroxy-9-methyl-19-nor-9b,10a-lanosta-1,5,23-triene-3,11,22-trione 25-acetateGenerator
2,16a,20,25-Tetrahydroxy-9-methyl-19-nor-9b,10a-lanosta-1,5,23-triene-3,11,22-trione 25-acetic acidGenerator
2,16alpha,20,25-Tetrahydroxy-9-methyl-19-nor-9beta,10alpha-lanosta-1,5,23-triene-3,11,22-trione 25-acetic acidGenerator
2,16Α,20,25-tetrahydroxy-9-methyl-19-nor-9β,10α-lanosta-1,5,23-triene-3,11,22-trione 25-acetateGenerator
2,16Α,20,25-tetrahydroxy-9-methyl-19-nor-9β,10α-lanosta-1,5,23-triene-3,11,22-trione 25-acetic acidGenerator
a-ElaterinGenerator
Α-elaterinGenerator
a-ElaterineGenerator
Α-elaterineGenerator
Chemical FormulaC32H44O8
Average Mass556.6960 Da
Monoisotopic Mass556.30362 Da
IUPAC NameNot Available
Traditional NameNot Available
CAS Registry NumberNot Available
SMILES
CC(=O)OC(C)(C)\C=C\C(=O)[C@](C)(O)[C@H]1[C@H](O)C[C@@]2(C)[C@@H]3CC=C4[C@@H](C=C(O)C(=O)C4(C)C)[C@]3(C)C(=O)C[C@]12C
InChI Identifier
InChI=1S/C32H44O8/c1-17(33)40-27(2,3)13-12-23(36)32(9,39)25-21(35)15-29(6)22-11-10-18-19(14-20(34)26(38)28(18,4)5)31(22,8)24(37)16-30(25,29)7/h10,12-14,19,21-22,25,34-35,39H,11,15-16H2,1-9H3/b13-12+/t19-,21-,22+,25+,29+,30-,31+,32+/m1/s1
InChI KeyNDYMQXYDSVBNLL-MUYMLXPFSA-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
Bacopa monnieriLOTUS Database
Begonia nantoensisLOTUS Database
Bolbostemma paniculatumLOTUS Database
Bryonia albaLOTUS Database
Bryonia creticaLOTUS Database
Bryonia dioicaLOTUS Database
Bryonia verrucosaLOTUS Database
Citrullus lanatusLOTUS Database
Conobea scoparioidesLOTUS Database
Cucumis sativusLOTUS Database
Cucurbita foetidissimaLOTUS Database
Cucurbita maximaLOTUS Database
Cucurbita pepoLOTUS Database
Ecballium elateriumLOTUS Database
Helicteres angustifoliaLOTUS Database
Iberis amaraLOTUS Database
Iberis umbellataLOTUS Database
Luffa operculataLOTUS Database
Morierina montanaLOTUS Database
Nernstia mexicanaLOTUS Database
Wilbrandia ebracteataLOTUS Database
Chemical Taxonomy
Description Belongs to the class of organic compounds known as cucurbitacins. These are polycyclic compounds containing the tetracyclic cucurbitane nucleus skeleton, 19-(10->9b)-abeo-10alanost-5-ene (also known as 9b-methyl-19-nor lanosta-5-ene), with a variety of oxygenation functionalities at different positions.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassSteroids and steroid derivatives
Sub ClassCucurbitacins
Direct ParentCucurbitacins
Alternative Parents
Substituents
  • Cucurbitacin skeleton
  • Triterpenoid
  • 22-oxosteroid
  • 21-oxosteroid
  • 20-hydroxysteroid
  • Steroid ester
  • 2-hydroxysteroid
  • 16-hydroxysteroid
  • 16-alpha-hydroxysteroid
  • 14-alpha-methylsteroid
  • Hydroxysteroid
  • 3-oxo-delta-1-steroid
  • Oxosteroid
  • 11-oxosteroid
  • 3-oxosteroid
  • Delta-1-steroid
  • Cyclohexenone
  • Acyloin
  • Alpha-hydroxy ketone
  • Cyclic alcohol
  • Enone
  • Tertiary alcohol
  • Alpha,beta-unsaturated ketone
  • Acryloyl-group
  • Cyclic ketone
  • Secondary alcohol
  • Carboxylic acid ester
  • Ketone
  • Carboxylic acid derivative
  • Monocarboxylic acid or derivatives
  • Enol
  • Hydrocarbon derivative
  • Carbonyl group
  • Organic oxide
  • Alcohol
  • Organooxygen compound
  • Organic oxygen compound
  • 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
HMDB IDNot Available
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FoodDB IDNot Available
KNApSAcK IDC00003686
Chemspider ID4444696
KEGG Compound IDC08797
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkCucurbitacin E
METLIN IDNot Available
PubChem Compound5281319
PDB IDNot Available
ChEBI ID3944
Good Scents IDrw1701381
References
General References
  1. Kaya GI, Melzig MF: Quantitative determination of cucurbitacin E and cucurbitacin I in homoeopathic mother tincture of Gratiola officinalis L. by HPLC. Pharmazie. 2008 Dec;63(12):851-3. [PubMed:19177898 ]
  2. LAVIE D: The functional groupings of alpha-elaterin (cucurbitacin E). J Pharm Pharmacol. 1958 Dec;10(12):782. doi: 10.1111/j.2042-7158.1958.tb10375.x. [PubMed:13611647 ]
  3. Attard E, Brincat MP, Cuschieri A: Immunomodulatory activity of cucurbitacin E isolated from Ecballium elaterium. Fitoterapia. 2005 Jul;76(5):439-41. doi: 10.1016/j.fitote.2005.02.007. [PubMed:15908139 ]
  4. Sun C, Zhang M, Shan X, Zhou X, Yang J, Wang Y, Li-Ling J, Deng Y: Inhibitory effect of cucurbitacin E on pancreatic cancer cells growth via STAT3 signaling. J Cancer Res Clin Oncol. 2010 Apr;136(4):603-10. doi: 10.1007/s00432-009-0698-x. Epub 2009 Oct 9. [PubMed:19816711 ]
  5. Li Y, Wang R, Ma E, Deng Y, Wang X, Xiao J, Jing Y: The induction of G2/M cell-cycle arrest and apoptosis by cucurbitacin E is associated with increased phosphorylation of eIF2alpha in leukemia cells. Anticancer Drugs. 2010 Apr;21(4):389-400. doi: 10.1097/CAD.0b013e328336b383. [PubMed:20110807 ]
  6. Nakashima S, Matsuda H, Kurume A, Oda Y, Nakamura S, Yamashita M, Yoshikawa M: Cucurbitacin E as a new inhibitor of cofilin phosphorylation in human leukemia U937 cells. Bioorg Med Chem Lett. 2010 May 1;20(9):2994-7. doi: 10.1016/j.bmcl.2010.02.062. Epub 2010 Feb 25. [PubMed:20347305 ]
  7. Schabort JC, Potgieter DJ: Cucurbitacin B delta 23-reductase from Cucurbita maxima. II. Cofactor requirements, enzyme kinetics, substrate specificity and other characteristics. Biochim Biophys Acta. 1968 Jan 8;151(1):47-53. doi: 10.1016/0005-2744(68)90159-9. [PubMed:4384331 ]
  8. LOTUS database [Link]