Research Article

Synthesis and Inhibiting Activity of Some 4-Hydroxycoumarin Derivatives on HIV-1 Protease

Table 1

Structural information and binding activity of the experimental compounds.

Experimental ligandsSubstituentsIC50 ( 𝜇 M)G-scoreE-model

(1) 4-hydroxy-3-(1-phenoxypropyl)-2H-chromen-2-oneR = –C 3H6 –O–C6H5,
R1 = H
2.7−7.04−62.5
(2) 3-(3,4-dimethoxybenzyl)-4-hydroxy-2H-chromen-2-oneR = 3,4-dimethoxybenzyl,
R1 = H
84−6.17−60.1
(3) 3-(3,4-dimethoxybenzyl)-4-hydroxy-8-methyl-2H-chromen-2-one R = 3,4-dimethoxybenzyl,
R1 = –CH3
23−6.17−59.5
(4) 3-benzyl-4-hydroxy-8-phenyl-2H-chromen-2-oneR = –benzyl,
R1 = –phenyl
8.1 −6.27−57.0
(5) 4-hydroxy-3-(3-oxo-1-phenylbutyl)-2H-chromen-2-one
(Warfarin)
R = C6H5CHCH2COCH3
R1 = H
18−6.77−58.8