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Record Information
Version2.0
Created at2022-09-02 11:27:56 UTC
Updated at2022-09-02 11:27:56 UTC
NP-MRD IDNP0154535
Secondary Accession NumbersNone
Natural Product Identification
Common Name(15r,16s,18r)-15-ethyl-17-oxa-1,11-diazapentacyclo[13.4.1.0⁴,¹².0⁵,¹⁰.0¹⁶,¹⁸]icosa-4(12),5,7,9-tetraene
DescriptionConoflorine belongs to the class of organic compounds known as quebrachamine alkaloids. These are alkaloids with a structure based on the quebrachamine skeleton, a tetracyclic compound that is derived by fission of the 7,21 bond of the aspidospermidine skeleton. Some quebrachamine alkaloids lack the C-16 methoxycarbonyl group. (15r,16s,18r)-15-ethyl-17-oxa-1,11-diazapentacyclo[13.4.1.0⁴,¹².0⁵,¹⁰.0¹⁶,¹⁸]icosa-4(12),5,7,9-tetraene is found in Tabernaemontana grandiflora, Tabernanthe iboga and Trachelospermum jasminoides. (15r,16s,18r)-15-ethyl-17-oxa-1,11-diazapentacyclo[13.4.1.0⁴,¹².0⁵,¹⁰.0¹⁶,¹⁸]icosa-4(12),5,7,9-tetraene was first documented in 2002 (PMID: 12375951). Based on a literature review very few articles have been published on Conoflorine.
Structure
Thumb
SynonymsNot Available
Chemical FormulaC19H24N2O
Average Mass296.4140 Da
Monoisotopic Mass296.18886 Da
IUPAC Name(15R,16S,18R)-15-ethyl-17-oxa-1,11-diazapentacyclo[13.4.1.0^{4,12}.0^{5,10}.0^{16,18}]icosa-4(12),5,7,9-tetraene
Traditional Name(15R,16S,18R)-15-ethyl-17-oxa-1,11-diazapentacyclo[13.4.1.0^{4,12}.0^{5,10}.0^{16,18}]icosa-4(12),5,7,9-tetraene
CAS Registry NumberNot Available
SMILES
CC[C@@]12CN(C[C@H]3O[C@@H]13)CCC1=C(CC2)NC2=CC=CC=C12
InChI Identifier
InChI=1S/C19H24N2O/c1-2-19-9-7-16-14(13-5-3-4-6-15(13)20-16)8-10-21(12-19)11-17-18(19)22-17/h3-6,17-18,20H,2,7-12H2,1H3/t17-,18-,19-/m1/s1
InChI KeyOGDFTQDRHAGLTB-GUDVDZBRSA-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
Stemmadenia grandifloraLOTUS Database
Tabernanthe ibogaLOTUS Database
Trachelospermum jasminoidesLOTUS Database
Chemical Taxonomy
Description Belongs to the class of organic compounds known as quebrachamine alkaloids. These are alkaloids with a structure based on the quebrachamine skeleton, a tetracyclic compound that is derived by fission of the 7,21 bond of the aspidospermidine skeleton. Some quebrachamine alkaloids lack the C-16 methoxycarbonyl group.
KingdomOrganic compounds
Super ClassAlkaloids and derivatives
ClassQuebrachamine alkaloids
Sub ClassNot Available
Direct ParentQuebrachamine alkaloids
Alternative Parents
Substituents
  • Quebrachamine skeleton
  • 3-alkylindole
  • Indole
  • Indole or derivatives
  • Para-oxazepine
  • Epoxypiperidine
  • Aralkylamine
  • Benzenoid
  • Piperidine
  • Heteroaromatic compound
  • Pyrrole
  • Tertiary aliphatic amine
  • Tertiary amine
  • Organoheterocyclic compound
  • Oxacycle
  • Azacycle
  • Dialkyl ether
  • Oxirane
  • Ether
  • Hydrocarbon derivative
  • Organic nitrogen compound
  • Organic oxygen compound
  • Amine
  • Organonitrogen compound
  • Organooxygen compound
  • Organopnictogen compound
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic 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
logP3.33ALOGPS
logP3.32ChemAxon
logS-3.7ALOGPS
pKa (Strongest Acidic)17.13ChemAxon
pKa (Strongest Basic)7.73ChemAxon
Physiological Charge1ChemAxon
Hydrogen Acceptor Count2ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area31.56 ŲChemAxon
Rotatable Bond Count1ChemAxon
Refractivity88.38 m³·mol⁻¹ChemAxon
Polarizability34.15 ųChemAxon
Number of Rings5ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleNoChemAxon
HMDB IDNot Available
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FoodDB IDNot Available
KNApSAcK IDC00024619
Chemspider ID399177
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound453208
PDB IDNot Available
ChEBI IDNot Available
Good Scents IDNot Available
References
General References
  1. Eles J, Kalaus G, Greiner I, Kajtar-Peredy M, Szabo P, Keseru GM, Szabo L, Szantay C: Synthesis of vinca alkaloids and related compounds. 100. Stereoselective oxidation reactions of compounds with the aspidospermane and quebrachamine ring system. First synthesis of some alkaloids containing the epoxy ring. J Org Chem. 2002 Oct 18;67(21):7255-60. doi: 10.1021/jo020386r. [PubMed:12375951 ]
  2. LOTUS database [Link]