Secondary metabolite: Camptothecin



Camptothecin
Summary
Molecular formula: C20H16N2O4
SMILES: CC[C@@]1(O)C(=O)OCc2c1cc1c3nc4ccccc4cc3Cn1c2=O
InChI: InChI=1S/C20H16N2O4/c1-2-20(25)14-8-16-17-12(7-11-5-3-4-6-15(11)21-17)9-22(16)18(23)13(14)10-26-19(20)24/h3-8,25H,2,9-10H2,1H3/t20-/m0/s1
InChIKey: VSJKWCGYPAHWDS-FQEVSTJZSA-N
Chemical classification
Kingdom: Organic compounds
Super class: Alkaloids and derivatives
Class: Camptothecins
Synonymous chemical names:
camptothecin
Chemical structure download



Camptothecin
Physicochemical properties
Property name Tool Property value
Molecular weight (g/mol) RDKit 348.36
Log P RDKit 2.08
Topological polar surface area (Å2) RDKit 81.42
Number of hydrogen bond acceptors RDKit 6
Number of hydrogen bond donors RDKit 1
Number of carbon atoms RDKit 20
Number of heavy atoms RDKit 26
Number of heteroatoms RDKit 6
Number of nitrogen atoms RDKit 2
Number of sulfur atoms RDKit 0
Number of chiral carbon atoms RDKit 1
Stereochemical complexity RDKit 0.05
Number of sp hybridized carbon atoms RDKit 0
Number of sp2 hybridized carbon atoms RDKit 15
Number of sp3 hybridized carbon atoms RDKit 5
Fraction of sp3 hybridized carbon atoms (Fsp3) RDKit 0.25
Shape complexity RDKit 0.25
Number of rotatable bonds SwissADME 1
Number of aliphatic carbocycles RDKit 0
Number of aliphatic heterocycles RDKit 2
Number of aliphatic rings RDKit 2
Number of aromatic carbocycles RDKit 1
Number of aromatic heterocycles RDKit 2
Number of aromatic rings RDKit 3
Total number of rings RDKit 5
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 5



Camptothecin
Drug-likeness properties
Property nameToolProperty value
Number of Lipinski’s rule of 5 violations RDKit 0
Lipinski’s rule of 5 filter RDKit Passed
Number of Ghose filter violations RDKit 0
Ghose filter RDKit Passed
Veber filter RDKit Good
Egan filter RDKit Good
Pfizer’s 3/75 filter RDKit Good
GSK 4/400 filter RDKit Good
Number of Leadlikeness violations SwissADME 0
Weighted quantitative estimate of drug-likeness (QEDw) score RDKit 0.53



Camptothecin
ADMET 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 No
Gastrointestinal absorption SwissADME High
Log Kp (Skin permeation, cm/s) SwissADME -7.19
Number of PAINS structural alerts SwissADME 0
Number of Brenk structural alerts SwissADME 0
CYP1A2 inhibitor SwissADME Yes
CYP2C19 inhibitor SwissADME No
CYP2C9 inhibitor SwissADME Yes
CYP2D6 inhibitor SwissADME No
CYP3A4 inhibitor SwissADME Yes
P-glycoprotein substrate SwissADME Yes

Designed by R.P. Vivek-Ananth, M Karthikeyan and Ajaya Kumar Sahoo