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Synthesis and SAR study of 4,5-diaryl-1H-imidazole-2(3H)-thione derivatives, as potent 15-lipoxygenase inhibitors
被引:27
|作者:
Assadieskandar, Amir
[1
,2
]
Amini, Mohsen
[1
,2
]
Salehi, Marjan
[1
,2
]
Sadeghian, Hamid
[3
,4
]
Alimardani, Maliheh
[4
]
Sakhteman, Amirhossein
[5
]
Nadri, Hamid
[5
]
Shafiee, Abbas
[1
,6
]
机构:
[1] Univ Tehran Med Sci, Fac Pharm, Dept Med Chem, Tehran 14176, Iran
[2] Univ Tehran Med Sci, Drug Design & Dev Res Ctr, Tehran 14176, Iran
[3] Mashhad Univ Med Sci, Buali Res Inst, Microbiol & Virol Res Ctr, Mashhad, Iran
[4] Mashhad Univ Med Sci, Sch Paramed Sci, Dept Lab Sci, Mashhad, Iran
[5] Shahid Sadoughi Univ Med Sci, Fac Pharm, Dept Med Chem, Yazd, Iran
[6] Univ Tehran Med Sci, Pharmaceut Sci Res Ctr, Tehran 14176, Iran
关键词:
Soybean 15-lipoxygenase (SLO);
Radical scavenging activity;
Structure-activity relationship studies;
4,5-Diarylimidazole;
3-DIMENSIONAL STRUCTURE;
LIPOXYGENASE;
DESIGN;
EXPRESSION;
ATHEROSCLEROSIS;
BENZOINS;
COX-2;
D O I:
10.1016/j.bmc.2012.09.050
中图分类号:
Q5 [生物化学];
Q7 [分子生物学];
学科分类号:
071010 ;
081704 ;
摘要:
A series of 4,5-diaryl-1H-imidazole-2(3H)-thione was synthesized and their inhibitory potency against soybean 15-lipoxygenase and free radical scavenging activities were determined. Compound 11 showed the best IC50 for 15-LOX inhibition (IC50 = 4.7 mu M) and free radical scavenging activity (IC50 = 14 mu M). Methylation of SH at C-2 position of imidazole has dramatically decreased the 15-LOX inhibition and radical scavenging activity as it can be observed in the inactive compound 14 (IC50 >250 mu M). Structure activity similarity (SAS) showed that the most important chemical modification in this series was methylation of SH group and Docking studies revealed a proper orientation for SH group towards Fe core of the 15-LOX active site. Therefore it was concluded that iron chelating could be a possible mechanism for enzyme inhibition in this series of compounds. (C) 2012 Elsevier Ltd. All rights reserved.
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页码:7160 / 7166
页数:7
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