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  • Title: NMS-P937, a 4,5-dihydro-1H-pyrazolo[4,3-h]quinazoline derivative as potent and selective Polo-like kinase 1 inhibitor.
    Author: Beria I, Bossi RT, Brasca MG, Caruso M, Ceccarelli W, Fachin G, Fasolini M, Forte B, Fiorentini F, Pesenti E, Pezzetta D, Posteri H, Scolaro A, Re Depaolini S, Valsasina B.
    Journal: Bioorg Med Chem Lett; 2011 May 15; 21(10):2969-74. PubMed ID: 21470862.
    Abstract:
    As part of our drug discovery effort, we identified and developed 4,5-dihydro-1H-pyrazolo[4,3-h]quinazoline derivatives as PLK1 inhibitors. We now report the optimization of this class that led to the identification of NMS-P937, a potent, selective and orally available PLK1 inhibitor. Also, in order to understand the source of PLK1 selectivity, we determined the crystal structure of PLK1 with NMS-P937. The compound was active in vivo in HCT116 xenograft model after oral administration and is presently in Phase I clinical trials evaluation.
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