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Probing Lipophilic Adamantyl Group as the P1-Ligand for HIV-1 Protease Inhibitors: Design, Synthesis, Protein X-ray Structural Studies, and Biological Evaluation.

ABSTRACT: A series of potent HIV-1 protease inhibitors with a lipophilic adamantyl P1 ligand have been designed, synthesized, and evaluated. We have developed an enantioselective synthesis of adamantane-derived hydroxyethylamine isosteres utilizing Sharpless asymmetric epoxidation as the key step. Various inhibitors incorporating P1-adamantylmethyl in combination with P2 ligands such as 3-(R)-THF, 3-(S)-THF, bis-THF, and THF-THP were examined. The S1' pocket was also probed with phenyl and phenylmethyl ligands. Inhibitor 15d, with an isobutyl P1' ligand and a bis-THF P2 ligand, proved to be the most potent of the series. The cLogP value of inhibitor 15d is improved compared to inhibitor 2 with a phenylmethyl P1-ligand. X-ray structural studies of 15d, 15h, and 15i with HIV-1 protease complexes revealed molecular insight into the inhibitor-protein interaction.

SUBMITTER: Ghosh AK

PROVIDER: S-EPMC5360270 | biostudies-literature | 2016 Jul

REPOSITORIES: biostudies-literature

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Probing Lipophilic Adamantyl Group as the P1-Ligand for HIV-1 Protease Inhibitors: Design, Synthesis, Protein X-ray Structural Studies, and Biological Evaluation.

Ghosh Arun K AK Osswald Heather L HL Glauninger Kristof K Agniswamy Johnson J Wang Yuan-Fang YF Hayashi Hironori H Aoki Manabu M Weber Irene T IT Mitsuya Hiroaki H

Journal of medicinal chemistry 20160707 14

A series of potent HIV-1 protease inhibitors with a lipophilic adamantyl P1 ligand have been designed, synthesized, and evaluated. We have developed an enantioselective synthesis of adamantane-derived hydroxyethylamine isosteres utilizing Sharpless asymmetric epoxidation as the key step. Various inhibitors incorporating P1-adamantylmethyl in combination with P2 ligands such as 3-(R)-THF, 3-(S)-THF, bis-THF, and THF-THP were examined. The S1' pocket was also probed with phenyl and phenylmethyl li ...[more]

PMID: 27389367

Dataset Information

Probing Lipophilic Adamantyl Group as the P1-Ligand for HIV-1 Protease Inhibitors: Design, Synthesis, Protein X-ray Structural Studies, and Biological Evaluation.

Publications

Probing Lipophilic Adamantyl Group as the P1-Ligand for HIV-1 Protease Inhibitors: Design, Synthesis, Protein X-ray Structural Studies, and Biological Evaluation.

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