IMPPAT Phytochemical information: 
Samoquasine a

Samoquasine a
Summary

SMILES: O=c1[nH]cnc2c1ccc1c2cccc1
InChI: InChI=1S/C12H8N2O/c15-12-10-6-5-8-3-1-2-4-9(8)11(10)13-7-14-12/h1-7H,(H,13,14,15)
InChIKey: BJVYARVTSUNBMW-UHFFFAOYSA-N
DeepSMILES: O=c[nH]cncc6cccc6cccc6
Scaffold Graph/Node/Bond level: O=c1[nH]cnc2c1ccc1ccccc12
Scaffold Graph/Node level: OC1NCNC2C3CCCCC3CCC12
Scaffold Graph level: CC1CCCC2C1CCC1CCCCC12
Functional groups: c=O; c[nH]c; cnc
Chemical classification
ClassyFire Kingdom: Organic compounds
ClassyFire Superclass: Organoheterocyclic compounds
ClassyFire Class: Diazanaphthalenes
ClassyFire Subclass: Benzodiazines
NP Classifier Biosynthetic pathway: Alkaloids
NP Classifier Superclass: Anthranilic acid alkaloids
NP Classifier Class: Quinazoline alkaloids
Synonymous chemical names:
Samoquasine A, samoquasine a (a benzoquinazoline alkaloid), samoquasine a
External chemical identifiers:
CID:CID_135465824; ChEMBL:CHEMBL499777; SureChEMBL:SCHEMBL15954512
Chemical structure download


Samoquasine a
Physicochemical properties
Property name Tool Property value
Molecular weight (g/mol) RDKit 196.21
Log P RDKit 2.08
Topological polar surface area (Å2) RDKit 45.75
Number of hydrogen bond acceptors RDKit 2
Number of hydrogen bond donors RDKit 1
Number of carbon atoms RDKit 12
Number of heavy atoms RDKit 15
Number of heteroatoms RDKit 3
Number of nitrogen atoms RDKit 2
Number of sulfur atoms RDKit 0
Number of chiral carbon atoms RDKit 0
Stereochemical complexity RDKit 0
Number of sp hybridized carbon atoms RDKit 0
Number of sp2 hybridized carbon atoms RDKit 12
Number of sp3 hybridized carbon atoms RDKit 0
Shape complexity RDKit 0
Number of rotatable bonds RDKit 0
Number of aliphatic carbocycles RDKit 0
Number of aliphatic heterocycles RDKit 0
Number of aliphatic rings RDKit 0
Number of aromatic carbocycles RDKit 2
Number of aromatic heterocycles RDKit 1
Number of aromatic rings RDKit 3
Total number of rings RDKit 3
Number of saturated carbocycles RDKit 0
Number of saturated heterocycles RDKit 0
Number of saturated rings RDKit 0
Number of Smallest Set of Smallest Rings (SSSR) RDKit 3


Samoquasine a
Drug-likeness properties
Property nameToolProperty value
Number of Lipinski’s rule of 5 violations RDKit 0
Lipinski’s rule of 5 RDKit Passed
Number of Ghose rule violations RDKit 0
Ghose rule RDKit Passed
Veber rule RDKit Good
Egan rule RDKit Good
GSK 4/400 rule RDKit Good
Pfizer 3/75 rule RDKit Bad
Weighted quantitative estimate of drug-likeness (QEDw) score RDKit 0.56


Samoquasine a
ADME properties
Property nameToolProperty value
Bioavailability score SwissADME 0.55
Solubility class [ESOL] SwissADME Soluble
Solubility class [Silicos-IT] SwissADME Moderately soluble
Blood Brain Barrier permeation SwissADME Yes
Gastrointestinal absorption SwissADME High
Log Kp (Skin permeation, cm/s) SwissADME -6.11
Number of PAINS structural alerts SwissADME 0
Number of Brenk structural alerts SwissADME 1
CYP1A2 inhibitor SwissADME Yes
CYP2C19 inhibitor SwissADME No
CYP2C9 inhibitor SwissADME No
CYP2D6 inhibitor SwissADME No
CYP3A4 inhibitor SwissADME No
P-glycoprotein substrate SwissADME No