Np mrd loader

Record Information
Version2.0
Created at2021-06-19 18:36:44 UTC
Updated at2021-08-20 00:00:10 UTC
NP-MRD IDNP0026813
Secondary Accession NumbersNone
Natural Product Identification
Common NameCucurbitacin B
Provided ByJEOL DatabaseJEOL Logo
Description Cucurbitacin B is found in Acanthosicyos horridus, Begonia heracleifolia, Begonia nantoensis, Begonia parviflora, Begonia plebeja, Bolbostemma paniculatum, Bryonia cretica, Bryonia verrucosa, Chrysosplenium flagelliferum, Citrullus colocynthis , Cogniauxia podolaena, Cucumis prophetarum, Cucumis sativus, Cucurbita foetidissima, Cucurbita maxima, Cucurbita pepo, Datisca glomerata, Ecballium elaterium, Hemsleya endecaphylla, Iberis umbellata, Ipomopsis aggregata, Luffa operculata, Marah fabacea, Morierina montana, Picrorhiza kurrooa, Trichosanthes hupehensis, Trichosanthes kirilowii, Trichosanthes multiloba, Trichosanthes tricuspidata and Wilbrandia ebracteata. Cucurbitacin B was first documented in 2008 (PMID: 18309509). Based on a literature review a small amount of articles have been published on Cucurbitacin b (PMID: 18442812) (PMID: 18561312) (PMID: 19700240) (PMID: 20153103).
Structure
Thumb
Synonyms
ValueSource
1,2-Dihydro-alpha-elaterinChEBI
2beta,16alpha,20,25-Tetrahydroxy-9-methyl-19-nor-9beta,10alpha-lanosta-5,23-diene-3,11,22-trione, 25-acetateChEBI
2beta,16alpha,20,25-Tetrahydroxy-9-methyl-3,11,22-trioxo-19-nor-9beta,10alpha-lanosta-5,23-dien-25-yl acetateChEBI
1,2-Dihydro-a-elaterinGenerator
1,2-Dihydro-α-elaterinGenerator
2b,16a,20,25-Tetrahydroxy-9-methyl-19-nor-9b,10a-lanosta-5,23-diene-3,11,22-trione, 25-acetateGenerator
2b,16a,20,25-Tetrahydroxy-9-methyl-19-nor-9b,10a-lanosta-5,23-diene-3,11,22-trione, 25-acetic acidGenerator
2beta,16alpha,20,25-Tetrahydroxy-9-methyl-19-nor-9beta,10alpha-lanosta-5,23-diene-3,11,22-trione, 25-acetic acidGenerator
2Β,16α,20,25-tetrahydroxy-9-methyl-19-nor-9β,10α-lanosta-5,23-diene-3,11,22-trione, 25-acetateGenerator
2Β,16α,20,25-tetrahydroxy-9-methyl-19-nor-9β,10α-lanosta-5,23-diene-3,11,22-trione, 25-acetic acidGenerator
2b,16a,20,25-Tetrahydroxy-9-methyl-3,11,22-trioxo-19-nor-9b,10a-lanosta-5,23-dien-25-yl acetateGenerator
2b,16a,20,25-Tetrahydroxy-9-methyl-3,11,22-trioxo-19-nor-9b,10a-lanosta-5,23-dien-25-yl acetic acidGenerator
2beta,16alpha,20,25-Tetrahydroxy-9-methyl-3,11,22-trioxo-19-nor-9beta,10alpha-lanosta-5,23-dien-25-yl acetic acidGenerator
2Β,16α,20,25-tetrahydroxy-9-methyl-3,11,22-trioxo-19-nor-9β,10α-lanosta-5,23-dien-25-yl acetateGenerator
2Β,16α,20,25-tetrahydroxy-9-methyl-3,11,22-trioxo-19-nor-9β,10α-lanosta-5,23-dien-25-yl acetic acidGenerator
Cucurbitacin b 2-sulfateMeSH
Chemical FormulaC32H46O8
Average Mass558.7120 Da
Monoisotopic Mass558.31927 Da
IUPAC Name(3E,6R)-6-[(1R,2R,4S,10S,11S,13R,14R,15R)-4,13-dihydroxy-1,6,6,11,15-pentamethyl-5,17-dioxotetracyclo[8.7.0.0^{2,7}.0^{11,15}]heptadec-7-en-14-yl]-6-hydroxy-2-methyl-5-oxohept-3-en-2-yl acetate
Traditional Name(3E,6R)-6-[(1R,2R,4S,10S,11S,13R,14R,15R)-4,13-dihydroxy-1,6,6,11,15-pentamethyl-5,17-dioxotetracyclo[8.7.0.0^{2,7}.0^{11,15}]heptadec-7-en-14-yl]-6-hydroxy-2-methyl-5-oxohept-3-en-2-yl acetate
CAS Registry NumberNot Available
SMILES
[H]O[C@]1([H])C([H])([H])[C@@]2(C([H])([H])[H])[C@]3([H])C([H])([H])C([H])=C4[C@@]([H])(C([H])([H])[C@]([H])(O[H])C(=O)C4(C([H])([H])[H])C([H])([H])[H])[C@@]3(C(=O)C([H])([H])[C@]2(C([H])([H])[H])[C@@]1([H])[C@@](O[H])(C(=O)C(\[H])=C(/[H])C(OC(=O)C([H])([H])[H])(C([H])([H])[H])C([H])([H])[H])C([H])([H])[H])C([H])([H])[H]
InChI Identifier
InChI=1S/C32H46O8/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/h10,12-13,19-22,25,34-35,39H,11,14-16H2,1-9H3/b13-12+/t19-,20+,21-,22+,25+,29+,30-,31+,32+/m1/s1
InChI KeyIXQKXEUSCPEQRD-DKRGWESNSA-N
Experimental Spectra
Spectrum TypeDescriptionDepositor EmailDepositor OrganizationDepositorDeposition DateView
1D NMR13C NMR Spectrum (1D, 400 MHz, acetone-d6, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 400 MHz, acetone-d6, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 100 MHz, acetone-d6, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 100 MHz, acetone-d6, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 200 MHz, acetone-d6, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 200 MHz, acetone-d6, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 300 MHz, acetone-d6, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 300 MHz, acetone-d6, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 500 MHz, acetone-d6, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 500 MHz, acetone-d6, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 600 MHz, acetone-d6, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 600 MHz, acetone-d6, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 700 MHz, acetone-d6, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 700 MHz, acetone-d6, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 800 MHz, acetone-d6, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 800 MHz, acetone-d6, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 900 MHz, acetone-d6, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 900 MHz, acetone-d6, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 1000 MHz, acetone-d6, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 1000 MHz, acetone-d6, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
Predicted Spectra
Not Available
Chemical Shift Submissions
Not Available
Species
Species of Origin
Species NameSourceReference
Acanthosicyos horridusLOTUS Database
Anagallis arvensisKNApSAcK Database
Begonia heracleifoliaLOTUS Database
Begonia nantoensisJEOL database
    • Wu, P.-L., et al, Chem. Pharm. Bull. 52, 345 (2004)
Begonia parvifloraLOTUS Database
Begonia plebejaLOTUS Database
Bolbostemma paniculatumLOTUS Database
Bryonia albaKNApSAcK Database
Bryonia creticaLOTUS Database
Bryonia dioicaKNApSAcK Database
Bryonia verrucosaLOTUS Database
Casearia arboreaKNApSAcK Database
Chrysosplenium flagelliferumLOTUS Database
Citrullus colocynthisPlant
Citrullus lanatusFooDB
Cogniauxia podolaenaLOTUS Database
Cucumis africanusKNApSAcK Database
Cucumis meloKNApSAcK Database
Cucumis prophetarumLOTUS Database
Cucumis sativusLOTUS Database
Cucumis sativus L.FooDB
Cucurbita foetidissimaLOTUS Database
Cucurbita maximaLOTUS Database
Cucurbita pepoLOTUS Database
Datisca glomerataLOTUS Database
Ecballium elateriumLOTUS Database
Hemsleya endecaphyllaLOTUS Database
Iberis spp.KNApSAcK Database
Iberis umbellataLOTUS Database
Ipomopsis aggregataLOTUS Database
Lagenaria sicerariaFooDB
Licania intrapetiolarisKNApSAcK Database
Luffa aegyptiacaFooDB
Luffa operculataLOTUS Database
Marah fabaceaLOTUS Database
Momordica charantiaFooDB
Morierina montanaLOTUS Database
Picrorhiza kurrooaLOTUS Database
Trichosanthes hupehensisLOTUS Database
Trichosanthes kirilowiiLOTUS Database
Trichosanthes multilobaLOTUS Database
Trichosanthes tricuspidataLOTUS Database
Wilbrandia ebracteataLOTUS Database
Species Where Detected
Species NameSourceReference
Diabrotica undecimpunctata howardiKNApSAcK Database
Leucopaxillus gentianeusKNApSAcK Database
Chemical Taxonomy
ClassificationNot classified
Physical Properties
StateNot Available
Experimental Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water Solubility0.38 mg/L @ 25 °C (est)The Good Scents Company Information System
LogPNot AvailableNot Available
Predicted Properties
PropertyValueSource
logP3.7ALOGPS
logP3.13ChemAxon
logS-5ALOGPS
pKa (Strongest Acidic)12.8ChemAxon
pKa (Strongest Basic)-2.9ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count7ChemAxon
Hydrogen Donor Count3ChemAxon
Polar Surface Area138.2 ŲChemAxon
Rotatable Bond Count6ChemAxon
Refractivity151.04 m³·mol⁻¹ChemAxon
Polarizability60.8 ųChemAxon
Number of Rings4ChemAxon
BioavailabilityYesChemAxon
Rule of FiveNoChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleYesChemAxon
HMDB IDNot Available
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FoodDB IDNot Available
KNApSAcK IDC00003683
Chemspider ID4444693
KEGG Compound IDC08794
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem CompoundNot Available
PDB IDNot Available
ChEBI ID3941
Good Scents IDrw1846421
References
General References
  1. Liu T, Zhang M, Zhang H, Sun C, Deng Y: Inhibitory effects of cucurbitacin B on laryngeal squamous cell carcinoma. Eur Arch Otorhinolaryngol. 2008 Oct;265(10):1225-32. doi: 10.1007/s00405-008-0625-9. Epub 2008 Feb 29. [PubMed:18309509 ]
  2. Liu T, Zhang M, Zhang H, Sun C, Yang X, Deng Y, Ji W: Combined antitumor activity of cucurbitacin B and docetaxel in laryngeal cancer. Eur J Pharmacol. 2008 Jun 10;587(1-3):78-84. doi: 10.1016/j.ejphar.2008.03.032. Epub 2008 Apr 1. [PubMed:18442812 ]
  3. Yin D, Wakimoto N, Xing H, Lu D, Huynh T, Wang X, Black KL, Koeffler HP: Cucurbitacin B markedly inhibits growth and rapidly affects the cytoskeleton in glioblastoma multiforme. Int J Cancer. 2008 Sep 15;123(6):1364-75. doi: 10.1002/ijc.23648. [PubMed:18561312 ]
  4. Chan KT, Li K, Liu SL, Chu KH, Toh M, Xie WD: Cucurbitacin B inhibits STAT3 and the Raf/MEK/ERK pathway in leukemia cell line K562. Cancer Lett. 2010 Mar 1;289(1):46-52. doi: 10.1016/j.canlet.2009.07.015. Epub 2009 Aug 22. [PubMed:19700240 ]
  5. Chan KT, Meng FY, Li Q, Ho CY, Lam TS, To Y, Lee WH, Li M, Chu KH, Toh M: Cucurbitacin B induces apoptosis and S phase cell cycle arrest in BEL-7402 human hepatocellular carcinoma cells and is effective via oral administration. Cancer Lett. 2010 Aug 1;294(1):118-24. doi: 10.1016/j.canlet.2010.01.029. Epub 2010 Feb 11. [PubMed:20153103 ]
  6. Wu, P.-L., et al. (2004). Wu, P.-L., et al, Chem. Pharm. Bull. 52, 345 (2004). Chem. Pharm. Bull..