期刊
ACS MEDICINAL CHEMISTRY LETTERS
卷 7, 期 6, 页码 558-562出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsmedchemlett.5b00234
关键词
Respiratory syncytial virus (RSV); antiviral; fusion inhibitors; quinoline; piperazine
A novel series of piperazinylquinoline derivatives were discovered as respiratory syncytial virus (RSV) fusion inhibitors by the ligand-based screening approach. Among 3,000 hits, 1-amino-3-[[2-(4-phenyl-1-piperidyl)-4-quinolyl]amino]propan-2-ol (7) was proven to be active against the RSV long (A) strain. The anti-RSV activity was improved by converting piperidine to benzylcarbonyl substituted piperazine. The basic side chain was also found to be crucial for anti-RSV activity. The selected analogues, 45 and 50, demonstrated anti-RSV activities up to EC50 = 0.028 mu M and 0.033 mu M, respectively. A direct anti-RSV effect was confirmed by a plaque reduction assay and a fusion inhibition assay. Both 45 and 50 showed promising DMPK properties with good oral bioavailability, and could potentially lead to novel therapeutic agents targeting the RSV fusion process.
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