Design, synthesis, inhibitory activity, and SAR studies of hydrophobic p-aminosalicylic acid derivatives as neuraminidase inhibitors
作者:Jie Zhang、Qiang Wang、Hao Fang、Wenfang Xu、Ailin Liu、Guanhua Du
DOI:10.1016/j.bmc.2008.01.036
日期:2008.4.1
A series of hydrophobic p-aminosalicylic acid derivatives containing a lipophilic side chain at C-2 and an amino or guanidine at C-5 were synthesized and evaluated for their ability to inhibit neuraminidase (NA) of influenza A virus (H3N2). All compounds were synthesized in good yields starting from commercially available p-aminosalicylic acid (PAS) using a suitable synthetic strategy. These compounds showed potent inhibitory activity against influenza A NA. Within this series, six compounds, 11, 12, 13e, 16e, 17c, and 18e, have the good potency (IC50 = 0.032-0.049 mu M), which are compared to Oseltamivir (IC50 = 0.021 mu M) and could be used as lead compounds in the future. (C) 2008 Elsevier Ltd. All rights reserved.