Design of N-acetyl-6-sulfo-β-d-glucosaminide-based inhibitors of influenza virus sialidase
作者:Kenji Sasaki、Yoshihiro Nishida、Mikie Kambara、Hirotaka Uzawa、Tadanobu Takahashi、Takashi Suzuki、Yasuo Suzuki、Kazukiyo Kobayashi
DOI:10.1016/j.bmc.2004.01.013
日期:2004.3
Biological activity of N-acetyl-6-SUIfO-beta-D-glucosaminides (6-sulfo-GlcNAc 1) having a structural homology to N-acetylneuraminic acid (Neu5Ac 2) and 2-deoxy-2,3-dehydro-N-acetylneuraminic acid (Neu5Ac2en 3) was examined in terms of inhibitory activity against influenza virus sialidase (influenza, A/Memphis/l/71 H3N2). pNP 6-Sulfo-GlcNAc la was proved to show substantial activity to inhibit the virus sialidaSe IC50 2.8 mM), though p-nitrophenyl (pNP) GlcNAc without 6-sulfo group and pNP 6-sulfo-GlcNH(3)(+) 1b without 2-NHAc showed little activity IC50 > 50 mM). The activity was enhanced nearly 100-fold when the pNP group of la was converted to p-acetamidophenyl one 5 (IC50 = 30 muM) or replaced with 1-naphthyl 6 IC50 = 10 muM) or n-propyl one 8 (IC50 = 11 muM) (C) 2004 Elsevier Ltd. All rights reserved.