作者:Venkatram R. Atigadda、Wayne J. Brouillette、Franco Duarte、Yarlagadda S. Babu、Shanta Bantia、Pooran Chand、Naiming Chu、John A. Montgomery、David A. Walsh、Elise Sudbeck、James Finley、Gillian M. Air、Ming Luo、Graeme W. Laver
DOI:10.1016/s0968-0896(99)00197-2
日期:1999.11
Neuraminidase (NA) plays a critical role in the life cycle of influenza virus and is a target for new therapeutic agents. A new benzoic acid inhibitor (11) containing a lipophilic side chain at C-3 and a guanidine at C-5 was synthesized. The X-ray structure of 4-(N-acetylamino)-5-guanidino-3-(3-pentyloxy)benzoic acid in complex with NA revealed that the lipophilic side chain binds in a newly created hydrophobic pocket formed by the movement of Glu 278 to interact with Arg 226, whereas the guanidine of 11 interacts In a negatively charged pocket created by Asp 152, Glu 120 and Glu 229. Compound 11 was highly selective for type A (H2N2) influenza NA (IC50 1 mu M) over type B (B/Lee/40) influenza NA (IC50 500 mu M). (C) 1999 Elsevier Science Ltd. All rights reserved.