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Record Information
Version2.0
Created at2022-04-28 23:24:43 UTC
Updated at2022-04-28 23:24:43 UTC
NP-MRD IDNP0078313
Secondary Accession NumbersNone
Natural Product Identification
Common NameAspernigrin A
DescriptionAspernigrin A belongs to the class of organic compounds known as nicotinamides. These are heterocyclic aromatic compounds containing a pyridine ring substituted at position 3 by a carboxamide group. Aspernigrin A is found in Aspergillus niger, Cladosporium herbarum IFB-E002 and Pseudopestalotiopsis theae. Aspernigrin A was first documented in 2005 (PMID: 16038560). Aspernigrin A is an extremely weak basic (essentially neutral) compound (based on its pKa) (PMID: 26669099).
Structure
Thumb
Synonyms
ValueSource
6-Benzyl-4-oxo-1,4-dihydropyridine-3-carboxamideMeSH
Aspernigrin aMeSH
Chemical FormulaC13H12N2O2
Average Mass228.2510 Da
Monoisotopic Mass228.08988 Da
IUPAC Name6-benzyl-4-oxo-1,4-dihydropyridine-3-carboxamide
Traditional Name6-benzyl-4-oxo-1H-pyridine-3-carboxamide
CAS Registry NumberNot Available
SMILES
NC(=O)C1=CNC(CC2=CC=CC=C2)=CC1=O
InChI Identifier
InChI=1S/C13H12N2O2/c14-13(17)11-8-15-10(7-12(11)16)6-9-4-2-1-3-5-9/h1-5,7-8H,6H2,(H2,14,17)(H,15,16)
InChI KeyRUUZDCZRFRLJFC-UHFFFAOYSA-N
Experimental Spectra
Not Available
Predicted Spectra
Chemical Shift Submissions
Not Available
Species
Species of Origin
Species NameSourceReference
Aspergillus nigerFungi
Cladosporium herbarum IFB-E002Fungi
Pseudopestalotiopsis theaeLOTUS Database
Chemical Taxonomy
Description Belongs to the class of organic compounds known as nicotinamides. These are heterocyclic aromatic compounds containing a pyridine ring substituted at position 3 by a carboxamide group.
KingdomOrganic compounds
Super ClassOrganoheterocyclic compounds
ClassPyridines and derivatives
Sub ClassPyridinecarboxylic acids and derivatives
Direct ParentNicotinamides
Alternative Parents
Substituents
  • Nicotinamide
  • Dihydropyridine
  • Monocyclic benzene moiety
  • Hydropyridine
  • Benzenoid
  • Heteroaromatic compound
  • Vinylogous amide
  • Carboxamide group
  • Primary carboxylic acid amide
  • Cyclic ketone
  • Carboxylic acid derivative
  • Azacycle
  • Organooxygen compound
  • Organonitrogen compound
  • Hydrocarbon derivative
  • Organic oxide
  • Organic oxygen compound
  • Organic nitrogen compound
  • Aromatic heteromonocyclic compound
Molecular FrameworkAromatic heteromonocyclic 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
logP1.01ALOGPS
logP0.91ChemAxon
logS-3.1ALOGPS
pKa (Strongest Acidic)11.96ChemAxon
pKa (Strongest Basic)-1.2ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count3ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area72.19 ŲChemAxon
Rotatable Bond Count3ChemAxon
Refractivity65.95 m³·mol⁻¹ChemAxon
Polarizability23.38 ųChemAxon
Number of Rings2ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
HMDB IDNot Available
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FoodDB IDNot Available
KNApSAcK IDC00042247
Chemspider IDNot Available
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound11736320
PDB IDNot Available
ChEBI ID133846
Good Scents IDNot Available
References
General References
  1. Ye YH, Zhu HL, Song YC, Liu JY, Tan RX: Structural revision of aspernigrin A, reisolated from Cladosporium herbarum IFB-E002. J Nat Prod. 2005 Jul;68(7):1106-8. doi: 10.1021/np050059p. [PubMed:16038560 ]
  2. Bandara HM, Kumar NS, Jayasinghe L, Masubuti H, Fujimoto Y: A 3-Vinyl Cephem Derivative, a Useful Intermediate in the Synthesis of Cepham Antibiotics, from Aspergillus awamori Associated with Banana Fruit. Nat Prod Commun. 2015 Oct;10(10):1663-6. [PubMed:26669099 ]