Figure 2

Best pharmacophore model AAHPRR.15 of AChE inhibitor with a reference ligand and its distance. Pharmacophore features are coded with different colors: 2 hydrogen bond acceptors (A2, A3; pink), 1 positive regions (P6; blue), 1 hydrophobic regions (H5; green) and 2 aromatic ring (R7, R8; orange).