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  • Title: Discovery of potent dipeptidyl peptidase IV inhibitors through pharmacophore hybridization and hit-to-lead optimization.
    Author: Zeng S, Xie H, Zeng LL, Lu X, Zhao X, Zhang GC, Tu ZC, Xu HJ, Yang L, Zhang XQ, Hu W.
    Journal: Bioorg Med Chem; 2013 Apr 01; 21(7):1749-55. PubMed ID: 23434133.
    Abstract:
    A novel dipeptidyl peptidase IV inhibitor hit (5, IC50=0.86 μM) was structurally derived from our recently disclosed preclinical candidate 4 by replacing the cyanobenzyl with a butynyl based on pharmacophore hybridization. A hit-to-lead optimization effort was then initiated to improve its potency. Most N-substituted analogs exhibited good in vitro activity, and compound 18o (IC50=1.55 nM) was identified to be a potent dipeptidyl peptidase IV inhibitor with a significantly improved pharmacokinetic properties (bioavailablity: 41% vs 82.9%; T1/2: 2h vs 4.9h).
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