Synthesis and Evaluation of Keto-Glutamine Analogues as Potent Inhibitors of Severe Acute Respiratory Syndrome 3CL<sup>pro</sup>
作者:Rajendra P. Jain、Hanna I. Pettersson、Jianmin Zhang、Katherine D. Aull、Pascal D. Fortin、Carly Huitema、Lindsay D. Eltis、Jonathan C. Parrish、Michael N. G. James、David S. Wishart、John C. Vederas
DOI:10.1021/jm0494873
日期:2004.12.1
The 3C-like proteinase (3CL(pro)) of severe acute respiratory syndrome (SARS) coronavirus is a key target for structure-based drug design against this viral infection. The enzyme recognizes peptide substrates with a glutamine residue at the P1 site. A series of keto-glutamine analogues with a phthalhydrazido group at the a-position were synthesized and tested as reversible inhibitiors against SARS 3CL(pro). Attachment of tripeptide (Ac-Val-Thr-Leu) to these glutamine-based "warheads" generated significantly better inhibitors (4a-c, 8a-d) with IC50 values ranging from 0.60 to 70 muM.