Structure-Based Design of N -(5-Phenylthiazol-2-yl)acrylamides as Novel and Potent Glutathione S-Transferase Omega 1 Inhibitors
Journal Article
·
· Journal of Medicinal Chemistry
- Univ. of Michigan, Ann Arbor, MI (United States); Sichuan Univ., Chengdu (People's Republic of China)
- Univ. of Michigan, Ann Arbor, MI (United States)
- Sichuan Univ., Chengdu (People's Republic of China)
Using reported glutathione S-transferase omega 1 (GSTO1- 1) cocrystal structures, we designed and synthesized acrylamide-containing compounds that covalently bind to Cys32 on the catalytic site. Starting from a thiazole derivative 10 (GSTO1-1 IC50 = 0.6 $$μ$$M), compound 18 was synthesized and cocrystallized with GSTO1. Modification on the amide moiety of hit compound 10 significantly increased the GSTO1-1 inhibitory potency. We solved the cocrystal structures of new derivatives, 37 and 44, bearing an amide side chain bound to GSTO1. These new structures showed a reorientation of the phenyl thiazole core of inhibitors, 37 and 44, when compared to 18. Furthermore, guided by the cocrystal structure of GSTO1:44, analogue 49 was designed, resulting in the most potent GSTO1-1 inhibitor (IC50 = 0.22 ± 0.02 nM) known to date. We believe that our data will form the basis for future studies of developing GSTO1-1 as a new drug target for cancer therapy.
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
- Sponsoring Organization:
- China Scholarship Council (CSC); Michigan Economic Development Corporation and the Michigan Technology Tri-Corridor; National Institutes of Health (NIH); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
- Grant/Contract Number:
- AC02-06CH11357
- OSTI ID:
- 1504972
- Journal Information:
- Journal of Medicinal Chemistry, Journal Name: Journal of Medicinal Chemistry Journal Issue: 6 Vol. 62; ISSN 0022-2623
- Publisher:
- American Chemical Society (ACS)Copyright Statement
- Country of Publication:
- United States
- Language:
- ENGLISH
A one-pot synthesis of 2-aminothiazoles via the coupling of ketones and thiourea using I 2 /dimethyl sulfoxide as a catalytic oxidative system
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