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Exploring the hydrophobic channel of NNIBP leads to the discovery of novel piperidine-substituted thiophene[3,2-d]pyrimidine derivatives as potent HIV-1 NNRTIs.


ABSTRACT: In this report, a series of novel piperidine-substituted thiophene[3,2-d]pyrimidine derivatives were designed to explore the hydrophobic channel of the non-nucleoside reverse transcriptase inhibitors binding pocket (NNIBP) by incorporating an aromatic moiety to the left wing of the lead K-5a2. The newly synthesized compounds were evaluated for anti-HIV potency in MT-4 cells and inhibitory activity to HIV-1 reverse transcriptase (RT). Most of the synthesized compounds exhibited broad-spectrum activity toward wild-type and a wide range of HIV-1 strains carrying single non-nucleoside reverse transcriptase inhibitors (NNRTI)-resistant mutations. Especially, compound 26 exhibited the most potent activity against wild-type and a panel of single mutations (L100I, K103N, Y181C, Y188L and E138K) with an EC50 ranging from 6.02 to 23.9 nmol/L, which were comparable to those of etravirine (ETR). Moreover, the RT inhibition activity, preliminary structure-activity relationship and molecular docking were also investigated. Furthermore, 26 exhibited favorable pharmacokinetics (PK) profiles and with a bioavailability of 33.8%. Taken together, the results could provide valuable insights for further optimization and compound 26 holds great promise as a potential drug candidate for the treatment of HIV-1 infection.

SUBMITTER: Kang D 

PROVIDER: S-EPMC7280082 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature

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Exploring the hydrophobic channel of NNIBP leads to the discovery of novel piperidine-substituted thiophene[3,2-<i>d</i>]pyrimidine derivatives as potent HIV-1 NNRTIs.

Kang Dongwei D   Feng Da D   Ginex Tiziana T   Zou Jinmi J   Wei Fenju F   Zhao Tong T   Huang Boshi B   Sun Yanying Y   Desta Samuel S   De Clercq Erik E   Pannecouque Christophe C   Zhan Peng P   Liu Xinyong X  

Acta pharmaceutica Sinica. B 20190914 5


In this report, a series of novel piperidine-substituted thiophene[3,2-<i>d</i>]pyrimidine derivatives were designed to explore the hydrophobic channel of the non-nucleoside reverse transcriptase inhibitors binding pocket (NNIBP) by incorporating an aromatic moiety to the left wing of the lead <b>K-5a2</b>. The newly synthesized compounds were evaluated for anti-HIV potency in MT-4 cells and inhibitory activity to HIV-1 reverse transcriptase (RT). Most of the synthesized compounds exhibited broa  ...[more]

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