Ligand profile

R26

Ligand co-crystallized with a similar protein (Protein Data Bank).

Bound to: O00116

Via homolog PDB 4p8t UniProt P9WJF1 Formula C₁₈H₁₁F₃N₄O₂
Mol. weight 372.31 Da
Permeability Check
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
R26
PDB
4p8t
UniProt (similar protein)
P9WJF1
Target protein
O00116

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 372.31 Da
LogP (Crippen) 3.83
H-bond donors 2
H-bond acceptors 5
TPSA 98.90 Ų
Rotatable bonds 4
Aromatic rings 3 / 3
Heavy atoms 27
Fraction sp³ C 0.11
Formula C₁₈H₁₁F₃N₄O₂

Drug-likeness

Descriptor-based ADME screening flags from SMILES. These are not experimental toxicity results.

Permeability proxy Check

Estimated from TPSA and LogP only: TPSA ≤ 90 Ų and −1 ≤ LogP ≤ 5 are treated as a favorable small-molecule permeability screen.

  • TPSA ≤ 90 Ų 98.9
  • −1 ≤ LogP ≤ 5 3.83
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 372.3
  • LogP ≤ 5 3.83
  • H-bond donors ≤ 5 2
  • H-bond acceptors ≤ 10 5
Veber's rules Pass
  • Rotatable bonds ≤ 10 4
  • TPSA ≤ 140 Ų 98.9
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
c1cc(ccc1CNc2c(nc3ccc(cc3n2)C(F)(F)F)C(=O)O)C#N
InChI 
InChI=1S/C18H11F3N4O2/c19-18(20,21)12-5-6-13-14(7-12)25-16(15(24-13)17(26)27)23-9-11-3-1-10(8-22)2-4-11/h1-7H,9H2,(H,23,25)(H,26,27)
InChIKey 
RFEBDZANCVHDLP-UHFFFAOYSA-N

Provenance

Annotation context from LigQ_2, the internal Target step that collects PDB, ChEMBL, and ZINC ligand evidence.

Method
LigQ domain
Source
PDB
Binding sites
PF01565' 'PF04030

External resources

Open this ligand in third-party databases and cheminformatics tools.

Other ligands for this protein

Quick navigation to other ligands bound to O00116.

PDB 62

Ligands co-crystallized with this protein (structural evidence).

Ligand PDB entry

ChEMBL 53

Compounds with measured inhibitory activity on this target (higher pchembl = more potent).

Compound Potency (pchembl)

ZINC 50

Virtual screening candidates selected by structural similarity to known actives (Tanimoto ≥ 0.5).

Compound Similarity (Tanimoto)