Table 1.

Distance restrictions of pharmacophore model presented in our work

H1-H2 Distance 1a	H2-H3 Distance 2	H3-A2 Distance 3	A2-A1 Distance 4	A1-H1 Distance 5
4.195	6.762	5.639	6.764	3.168

A hydrogen bond acceptor, H hydrophobic or hydrophobic aromatic center

^aThe distances were depicted in angstrom with an error range of ±1 Å