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Record Information
Version2.0
Created at2022-03-17 20:30:31 UTC
Updated at2022-03-17 20:30:31 UTC
NP-MRD IDNP0046848
Secondary Accession NumbersNone
Natural Product Identification
Common NameCucurbitacin K
DescriptionCucurbitacin K 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. Cucurbitacin K is an extremely weak basic (essentially neutral) compound (based on its pKa).
Structure
Thumb
SynonymsNot Available
Chemical FormulaC60H88O16
Average Mass1065.3311 Da
Monoisotopic Mass1064.60724 Da
IUPAC Name13-hydroxy-1,6,6,11,15-pentamethyl-14-(2,5,6-trihydroxy-6-methyl-3-oxoheptan-2-yl)tetracyclo[8.7.0.0²,⁷.0¹¹,¹⁵]heptadec-7-ene-4,5,17-trione; 4,13-dihydroxy-1,6,6,11,15-pentamethyl-14-(2,5,6-trihydroxy-6-methyl-3-oxoheptan-2-yl)tetracyclo[8.7.0.0²,⁷.0¹¹,¹⁵]heptadeca-3,7-diene-5,17-dione
Traditional Name13-hydroxy-1,6,6,11,15-pentamethyl-14-(2,5,6-trihydroxy-6-methyl-3-oxoheptan-2-yl)tetracyclo[8.7.0.0²,⁷.0¹¹,¹⁵]heptadec-7-ene-4,5,17-trione; 4,13-dihydroxy-1,6,6,11,15-pentamethyl-14-(2,5,6-trihydroxy-6-methyl-3-oxoheptan-2-yl)tetracyclo[8.7.0.0²,⁷.0¹¹,¹⁵]heptadeca-3,7-diene-5,17-dione
CAS Registry NumberNot Available
SMILES
CC(C)(O)C(O)CC(=O)C(C)(O)C1C(O)CC2(C)C3CC=C4C(CC(=O)C(=O)C4(C)C)C3(C)C(=O)CC12C.CC(C)(O)C(O)CC(=O)C(C)(O)C1C(O)CC2(C)C3CC=C4C(C=C(O)C(=O)C4(C)C)C3(C)C(=O)CC12C
InChI Identifier
InChI=1S/2C30H44O8/c2*1-25(2)15-9-10-19-27(5)13-18(32)23(30(8,38)21(34)12-20(33)26(3,4)37)28(27,6)14-22(35)29(19,7)16(15)11-17(31)24(25)36/h9,16,18-20,23,32-33,37-38H,10-14H2,1-8H3;9,11,16,18-20,23,31-33,37-38H,10,12-14H2,1-8H3
InChI KeySGJHURBAWYYGJW-UHFFFAOYSA-N
Experimental Spectra
Not Available
Predicted Spectra
Not Available
Chemical Shift Submissions
Not Available
Species
Species of Origin
Species NameSourceReference
Momordica charantiaFooDB
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
  • 24-hydroxysteroid
  • 22-oxosteroid
  • 21-oxosteroid
  • 20-hydroxysteroid
  • 3-oxo-delta-1-steroid
  • 3-oxo-delta-5-steroid
  • 3-oxosteroid
  • 2-hydroxysteroid
  • Hydroxysteroid
  • 11-oxosteroid
  • 16-hydroxysteroid
  • Oxosteroid
  • 2-oxosteroid
  • Delta-1-steroid
  • Delta-5-steroid
  • Cyclohexenone
  • Beta-hydroxy ketone
  • Acyloin
  • Tertiary alcohol
  • Alpha-hydroxy ketone
  • Cyclic alcohol
  • Cyclic ketone
  • Secondary alcohol
  • Ketone
  • Polyol
  • Enol
  • Alcohol
  • Organic oxygen compound
  • Organooxygen compound
  • Carbonyl group
  • Hydrocarbon derivative
  • Organic oxide
  • Aliphatic homopolycyclic compound
Molecular FrameworkNot Available
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
logP2.33ChemAxon
pKa (Strongest Acidic)11.39ChemAxon
pKa (Strongest Basic)-2.9ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count8ChemAxon
Hydrogen Donor Count4ChemAxon
Polar Surface Area149.2 ŲChemAxon
Rotatable Bond Count10ChemAxon
Refractivity141.41 m³·mol⁻¹ChemAxon
Polarizability57.52 ųChemAxon
Number of Rings8ChemAxon
BioavailabilityYesChemAxon
Rule of FiveNoChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleYesChemAxon
HMDB IDNot Available
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FoodDB IDFDB006199
KNApSAcK IDNot Available
Chemspider IDNot Available
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem CompoundNot Available
PDB IDNot Available
ChEBI IDNot Available
Good Scents IDNot Available
References
General ReferencesNot Available