Structure-Based Design, Synthesis, and Biological Evaluation of Irreversible Human Rhinovirus 3C Protease Inhibitors. 4. Incorporation of P<sub>1</sub> Lactam Moieties as <scp>l</scp>-Glutamine Replacements
作者:Peter S. Dragovich、Thomas J. Prins、Ru Zhou、Stephen E. Webber、Joseph T. Marakovits、Shella A. Fuhrman、Amy K. Patick、David A. Matthews、Caroline A. Lee、Clifford E. Ford、Benjamin J. Burke、Paul A. Rejto、Thomas F. Hendrickson、Tove Tuntland、Edward L. Brown、James W. Meador、Rose Ann Ferre、James E. V. Harr、Maha B. Kosa、Stephen T. Worland
DOI:10.1021/jm9805384
日期:1999.4.1
The structure-based design, chemical synthesis, and biological evaluation of various human rhinovirus (HRV) 3C protease (3CP) inhibitors which incorporate P-1 lactam moieties in lieu of an L-glutamine residue are described. These compounds are comprised of a tripeptidyl or peptidomimetic binding determinant and an ethyl propenoate Michael acceptor moiety which forms an irreversible covalent adduct with the active site cysteine residue of the 3C enzyme. The P-1-lactam-containing inhibitors display significantly increased 3CP inhibition activity along with improved antirhinoviral properties relative to corresponding L-glutamine-derived molecules. In addition, several lactam-containing compounds exhibit excellent selectivity for HRV 3CP over several other serine and cysteine proteases and are not appreciably degraded by a variety of biological agents. One of the most potent inhibitors (AG7088, mean antirhinoviral EC90 0.10 approximate to mu M, n = 46 serotypes) is shown to warrant additional preclinical development to explore its potential for use as an antirhinoviral agent.