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ID: ALA2203238
Journal: Bioorg Med Chem Lett
Title: Hit to Lead optimization of a novel class of squarate-containing polo-like kinases inhibitors.
Authors: Zhang Q, Xia Z, Mitten MJ, Lasko LM, Klinghofer V, Bouska J, Johnson EF, Penning TD, Luo Y, Giranda VL, Shoemaker AR, Stewart KD, Djuric SW, Vasudevan A.
Abstract: A high throughput screening (HTS) hit, 1 (Plk1 K(i)=2.2 μM) was optimized and evaluated for the enzymatic inhibition of Plk-1 kinase. Molecular modeling suggested the importance of adding a hydrophobic aromatic amine side chain in order to improve the potency by a classic kinase H-donor-acceptor binding mode. Extensive SAR studies led to the discovery of 49 (Plk1 K(i)=5 nM; EC(50)=1.05 μM), which demonstrated moderate efficacy at 100 mpk in a MiaPaCa tumor model, with no overt toxicity.
CiteXplore: 23103095