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Record Information
Version2.0
Created at2022-09-12 03:57:38 UTC
Updated at2022-09-12 03:57:38 UTC
NP-MRD IDNP0324102
Secondary Accession NumbersNone
Natural Product Identification
Common Name(1r,3as,3bs,5as,9ar,9bs,11ar)-1-ethenyl-9a,11a-dimethyl-1h,2h,3h,3ah,3bh,4h,5h,5ah,6h,9bh,10h,11h-cyclopenta[a]phenanthren-7-one
Description5Alpha-pregna-1,20-dien-3-one belongs to the class of organic compounds known as gluco/mineralocorticoids, progestogins and derivatives. These are steroids with a structure based on a hydroxylated prostane moiety. (1r,3as,3bs,5as,9ar,9bs,11ar)-1-ethenyl-9a,11a-dimethyl-1h,2h,3h,3ah,3bh,4h,5h,5ah,6h,9bh,10h,11h-cyclopenta[a]phenanthren-7-one is found in Eunephthya thyrsoidea. (1r,3as,3bs,5as,9ar,9bs,11ar)-1-ethenyl-9a,11a-dimethyl-1h,2h,3h,3ah,3bh,4h,5h,5ah,6h,9bh,10h,11h-cyclopenta[a]phenanthren-7-one was first documented in 2010 (PMID: 21579778). Based on a literature review a small amount of articles have been published on 5alpha-pregna-1,20-dien-3-one (PMID: 27030511) (PMID: 24914763).
Structure
Thumb
Synonyms
ValueSource
5a-Pregna-1,20-dien-3-oneGenerator
5Α-pregna-1,20-dien-3-oneGenerator
Chemical FormulaC21H30O
Average Mass298.4700 Da
Monoisotopic Mass298.22967 Da
IUPAC Name(1S,2R,7S,10S,11S,14R,15R)-14-ethenyl-2,15-dimethyltetracyclo[8.7.0.0^{2,7}.0^{11,15}]heptadec-3-en-5-one
Traditional Name(1S,2R,7S,10S,11S,14R,15R)-14-ethenyl-2,15-dimethyltetracyclo[8.7.0.0^{2,7}.0^{11,15}]heptadec-3-en-5-one
CAS Registry NumberNot Available
SMILES
C[C@]12CC[C@H]3[C@@H](CC[C@H]4CC(=O)C=C[C@]34C)[C@@H]1CC[C@@H]2C=C
InChI Identifier
InChI=1S/C21H30O/c1-4-14-6-8-18-17-7-5-15-13-16(22)9-11-21(15,3)19(17)10-12-20(14,18)2/h4,9,11,14-15,17-19H,1,5-8,10,12-13H2,2-3H3/t14-,15-,17-,18-,19-,20+,21-/m0/s1
InChI KeyJIFKGXKDITUDPD-PMJYHDSJSA-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
Eunephthya thyrsoideaLOTUS Database
Chemical Taxonomy
Description Belongs to the class of organic compounds known as gluco/mineralocorticoids, progestogins and derivatives. These are steroids with a structure based on a hydroxylated prostane moiety.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassSteroids and steroid derivatives
Sub ClassPregnane steroids
Direct ParentGluco/mineralocorticoids, progestogins and derivatives
Alternative Parents
Substituents
  • Progestogin-skeleton
  • 3-oxo-5-alpha-steroid
  • Oxosteroid
  • 3-oxosteroid
  • 3-oxo-delta-1-steroid
  • Delta-1-steroid
  • Cyclohexenone
  • Cyclic ketone
  • Ketone
  • Organic oxygen compound
  • Organic oxide
  • Hydrocarbon derivative
  • Organooxygen compound
  • Carbonyl group
  • Aliphatic homopolycyclic compound
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
logP5.07ChemAxon
pKa (Strongest Basic)-4.9ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count1ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area17.07 ŲChemAxon
Rotatable Bond Count1ChemAxon
Refractivity92.37 m³·mol⁻¹ChemAxon
Polarizability36.32 ųChemAxon
Number of Rings4ChemAxon
BioavailabilityYesChemAxon
Rule of FiveNoChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleNoChemAxon
HMDB IDNot Available
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FoodDB IDNot Available
KNApSAcK IDNot Available
Chemspider ID10213615
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound12097103
PDB IDNot Available
ChEBI IDNot Available
Good Scents IDNot Available
References
General References
  1. Musyoka TM, Kanzi AM, Lobb KA, Tastan Bishop O: Structure Based Docking and Molecular Dynamic Studies of Plasmodial Cysteine Proteases against a South African Natural Compound and its Analogs. Sci Rep. 2016 Mar 31;6:23690. doi: 10.1038/srep23690. [PubMed:27030511 ]
  2. Kuo CY, Juan YS, Lu MC, Chiang MY, Dai CF, Wu YC, Sung PJ: Pregnane-type steroids from the Formosan soft coral Scleronephthya flexilis. Int J Mol Sci. 2014 Jun 6;15(6):10136-49. doi: 10.3390/ijms150610136. [PubMed:24914763 ]
  3. Chen GY, Wei MY, Tan N, Liu Z, Yang RY: 5alpha-Pregna-1,20-dien-3-one. Acta Crystallogr Sect E Struct Rep Online. 2010 Jan 13;66(Pt 2):o351. doi: 10.1107/S1600536810000863. [PubMed:21579778 ]
  4. LOTUS database [Link]