Design, synthesis and biological evaluation of 3-substituted 2,5-dimethyl-N-(3-(1H-tetrazol-5-yl)phenyl)pyrroles as novel potential HIV-1 gp41 inhibitors |
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Authors: | He Xiao-Yang Zou Peng Qiu Jiayin Hou Ling Jiang Shibo Liu Shuwen Xie Lan |
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Affiliation: | Beijing Institute of Pharmacology and Toxicology, Beijing, China. |
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Abstract: | Based on the structure of HIV-1 gp41 binding site for small-molecule inhibitors, optimization of lead 2 resulted in the discovery of a new series of 2,5-dimethyl-3-(5-(N-phenylrhodaninyl)methylene)-N-(3-(1H-tetrazol-5-yl)phenyl)pyrrole compounds with improved anti-HIV-1 activity. The most active compounds 13a and 13j exhibited significant potency against gp41 6-HB formation with IC(50) values of 4.4 and 4.6 μM and against HIV-1 replication in the MT-2 cells with EC(50) values of 3.2 and 2.2 μM, respectively, thus providing a new starting point to develop highly potent small-molecule HIV fusion inhibitors targeting gp41. |
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