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Record Information
Version2.0
Created at2021-06-19 22:19:49 UTC
Updated at2021-08-20 00:00:23 UTC
NP-MRD IDNP0031176
Secondary Accession NumbersNone
Natural Product Identification
Common Namecucurbitacin I
Provided ByJEOL DatabaseJEOL Logo
DescriptionCucurbitacin i 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 I is considered to be a sterol. cucurbitacin I is found in Bryonia verrucosa, Citrullus colocynthis, Cucumis sativus, Cucurbita maxima, Cucurbita pepo, Elaeocarpus chinensis, Elaeocarpus hainanensis, Gyrinops walla, Hemsleya endecaphylla and Iberis umbellata. cucurbitacin I was first documented in 2009 (PMID: 19843642). Based on a literature review a significant number of articles have been published on Cucurbitacin i (PMID: 21062915) (PMID: 22328572) (PMID: 23478800) (PMID: 34220238) (PMID: 33987407).
Structure
Thumb
Synonyms
ValueSource
JSI 124MeSH
Elatericin bMeSH
Chemical FormulaC30H42O7
Average Mass514.6503 Da
Monoisotopic Mass514.29305 Da
IUPAC Name(1R,2R,10S,11S,13R,14R,15R)-14-[(2R,4E)-2,6-dihydroxy-6-methyl-3-oxohept-4-en-2-yl]-4,13-dihydroxy-1,6,6,11,15-pentamethyltetracyclo[8.7.0.0^{2,7}.0^{11,15}]heptadeca-3,7-diene-5,17-dione
Traditional Name(1R,2R,10S,11S,13R,14R,15R)-14-[(2R,4E)-2,6-dihydroxy-6-methyl-3-oxohept-4-en-2-yl]-4,13-dihydroxy-1,6,6,11,15-pentamethyltetracyclo[8.7.0.0^{2,7}.0^{11,15}]heptadeca-3,7-diene-5,17-dione
CAS Registry NumberNot Available
SMILES
[H]OC1=C([H])[C@]2([H])C(=C([H])C([H])([H])[C@@]3([H])[C@]4(C([H])([H])[H])C([H])([H])[C@@]([H])(O[H])[C@]([H])([C@@](O[H])(C(=O)C(\[H])=C(/[H])C(O[H])(C([H])([H])[H])C([H])([H])[H])C([H])([H])[H])[C@@]4(C([H])([H])[H])C([H])([H])C(=O)[C@@]23C([H])([H])[H])C(C1=O)(C([H])([H])[H])C([H])([H])[H]
InChI Identifier
InChI=1S/C30H42O7/c1-25(2,36)12-11-21(33)30(8,37)23-19(32)14-27(5)20-10-9-16-17(13-18(31)24(35)26(16,3)4)29(20,7)22(34)15-28(23,27)6/h9,11-13,17,19-20,23,31-32,36-37H,10,14-15H2,1-8H3/b12-11+/t17-,19-,20+,23+,27+,28-,29+,30+/m1/s1
InChI KeyNISPVUDLMHQFRQ-MKIKIEMVSA-N
Experimental Spectra
Spectrum TypeDescriptionDepositor EmailDepositor OrganizationDepositorDeposition DateView
1D NMR13C NMR Spectrum (1D, 300 MHz, CD3OD, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 300 MHz, CD3OD, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 100 MHz, CD3OD, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 100 MHz, CD3OD, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 200 MHz, CD3OD, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 200 MHz, CD3OD, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 400 MHz, CD3OD, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 400 MHz, CD3OD, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 500 MHz, CD3OD, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 500 MHz, CD3OD, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 600 MHz, CD3OD, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 600 MHz, CD3OD, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 700 MHz, CD3OD, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 700 MHz, CD3OD, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 800 MHz, CD3OD, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 800 MHz, CD3OD, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 900 MHz, CD3OD, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 900 MHz, CD3OD, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 1000 MHz, CD3OD, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 1000 MHz, CD3OD, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
Predicted Spectra
Not Available
Chemical Shift Submissions
Not Available
Species
Species of Origin
Species NameSourceReference
Begonia nantoensisKNApSAcK Database
Bryonia albaKNApSAcK Database
Bryonia dioicaKNApSAcK Database
Bryonia verrucosaLOTUS Database
Citrullus colocynthisJEOL database
    • Seger, C., et al, Magn. Reson. Chem. 43, 489 (2005)
Citrullus spp.KNApSAcK Database
Cucumis sativusLOTUS Database
Cucumis sativus L.FooDB
Cucurbita maximaLOTUS Database
Cucurbita pepoLOTUS Database
Ecballium elateriumKNApSAcK Database
Elaeocarpus chinensisLOTUS Database
Elaeocarpus hainanensisLOTUS Database
Gratiola officinalisKNApSAcK Database
Gyrinops wallaLOTUS Database
Hemsleya endecaphyllaLOTUS Database
Iberis amaraKNApSAcK Database
Iberis umbellataLOTUS 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
  • 25-hydroxysteroid
  • 22-oxosteroid
  • 21-oxosteroid
  • 20-hydroxysteroid
  • 3-oxo-delta-1-steroid
  • 2-hydroxysteroid
  • 14-alpha-methylsteroid
  • Hydroxysteroid
  • 11-oxosteroid
  • Oxosteroid
  • 3-oxosteroid
  • 16-alpha-hydroxysteroid
  • 16-hydroxysteroid
  • Delta-1-steroid
  • Cyclohexenone
  • Acyloin
  • Alpha-hydroxy ketone
  • Tertiary alcohol
  • Alpha,beta-unsaturated ketone
  • Cyclic alcohol
  • Enone
  • Acryloyl-group
  • Cyclic ketone
  • Secondary alcohol
  • Ketone
  • Enol
  • Alcohol
  • Hydrocarbon derivative
  • Carbonyl group
  • Organic oxygen compound
  • Organooxygen compound
  • Organic oxide
  • Aliphatic homopolycyclic compound
Molecular FrameworkAliphatic homopolycyclic compounds
External Descriptors
Physical Properties
StateNot Available
Experimental Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling Point698.30 °C. @ 760.00 mm Hg (est)The Good Scents Company Information System
Water Solubility5.49 mg/L @ 25 °C (est)The Good Scents Company Information System
LogP2.330 (est)The Good Scents Company Information System
Predicted Properties
PropertyValueSource
logP3.33ALOGPS
logP3.04ChemAxon
logS-4.6ALOGPS
pKa (Strongest Acidic)9.09ChemAxon
pKa (Strongest Basic)-2.8ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count7ChemAxon
Hydrogen Donor Count4ChemAxon
Polar Surface Area132.13 ŲChemAxon
Rotatable Bond Count4ChemAxon
Refractivity143.46 m³·mol⁻¹ChemAxon
Polarizability56.52 ųChemAxon
Number of Rings4ChemAxon
BioavailabilityYesChemAxon
Rule of FiveNoChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
HMDB IDNot Available
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FoodDB IDNot Available
KNApSAcK IDC00003689
Chemspider ID4444698
KEGG Compound IDC08800
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem CompoundNot Available
PDB IDNot Available
ChEBI ID3947
Good Scents IDrw1701371
References
General References
  1. Lui VW, Yau DM, Wong EY, Ng YK, Lau CP, Ho Y, Chan JP, Hong B, Ho K, Cheung CS, Tsang CM, Tsao SW, Chan AT: Cucurbitacin I elicits anoikis sensitization, inhibits cellular invasion and in vivo tumor formation ability of nasopharyngeal carcinoma cells. Carcinogenesis. 2009 Dec;30(12):2085-94. doi: 10.1093/carcin/bgp253. [PubMed:19843642 ]
  2. Chen YW, Chen KH, Huang PI, Chen YC, Chiou GY, Lo WL, Tseng LM, Hsu HS, Chang KW, Chiou SH: Cucurbitacin I suppressed stem-like property and enhanced radiation-induced apoptosis in head and neck squamous carcinoma--derived CD44(+)ALDH1(+) cells. Mol Cancer Ther. 2010 Nov;9(11):2879-92. doi: 10.1158/1535-7163.MCT-10-0504. Epub 2010 Nov 9. [PubMed:21062915 ]
  3. Tseng LM, Huang PI, Chen YR, Chen YC, Chou YC, Chen YW, Chang YL, Hsu HS, Lan YT, Chen KH, Chi CW, Chiou SH, Yang DM, Lee CH: Targeting signal transducer and activator of transcription 3 pathway by cucurbitacin I diminishes self-renewing and radiochemoresistant abilities in thyroid cancer-derived CD133+ cells. J Pharmacol Exp Ther. 2012 May;341(2):410-23. doi: 10.1124/jpet.111.188730. Epub 2012 Feb 10. [PubMed:22328572 ]
  4. Lopez-Haber C, Kazanietz MG: Cucurbitacin I inhibits Rac1 activation in breast cancer cells by a reactive oxygen species-mediated mechanism and independently of Janus tyrosine kinase 2 and P-Rex1. Mol Pharmacol. 2013 May;83(5):1141-54. doi: 10.1124/mol.112.084293. Epub 2013 Mar 11. [PubMed:23478800 ]
  5. Patel SB, Ghane SG: Phyto-constituents profiling of Luffa echinata and in vitro assessment of antioxidant, anti-diabetic, anticancer and anti-acetylcholine esterase activities. Saudi J Biol Sci. 2021 Jul;28(7):3835-3846. doi: 10.1016/j.sjbs.2021.03.050. Epub 2021 Mar 27. [PubMed:34220238 ]
  6. Zhang X, Zhu M, Hong Z, Chen C: Co-culturing polarized M2 Thp-1-derived macrophages enhance stemness of lung adenocarcinoma A549 cells. Ann Transl Med. 2021 Apr;9(8):709. doi: 10.21037/atm-21-1256. [PubMed:33987407 ]
  7. Seger, C., et al. (2005). Seger, C., et al, Magn. Reson. Chem. 43, 489 (2005). Mag. Reson. Chem..