Discovery of 1-(4-(5-(5-amino-6-(5-tert-butyl-1,3,4-oxadiazol-2-yl)pyrazin-2-yl)-1-ethyl-1,2,4-triazol-3-yl)piperidin-1-yl)-3-hydroxypropan-1-one (AZD8835): A potent and selective inhibitor of PI3Kα and PI3Kδ for the treatment of cancers
作者:Bernard Barlaam、Sabina Cosulich、Bénédicte Delouvrié、Rebecca Ellston、Martina Fitzek、Hervé Germain、Stephen Green、Urs Hancox、Craig S. Harris、Kevin Hudson、Christine Lambert-van der Brempt、Honorine Lebraud、Françoise Magnien、Maryannick Lamorlette、Antoine Le Griffon、Rémy Morgentin、Gilles Ouvry、Ken Page、Georges Pasquet、Urszula Polanska、Linette Ruston、Twana Saleh、Michel Vautier、Lara Ward
DOI:10.1016/j.bmcl.2015.10.002
日期:2015.11
Starting from potent inhibitors of PI3K alpha having poor general kinase selectivity (e.g., 1 and 2), optimisation of this series led to the identification of 25, a potent inhibitor of PI3K alpha (wild type, E545K and H1047R mutations) and PI3K delta, selective versus PI3K beta and PI3K gamma, with excellent general kinase selectivity. Compound 25 displayed low metabolic turnover and suitable physical properties for oral administration. In vivo, compound 25 showed pharmacodynamic modulation of AKT phosphorylation and near complete inhibition of tumour growth (93% tumour growth inhibition) in a murine H1047R PI3K alpha mutated SKOV-3 xenograft tumour model after chronic oral administration at 25 mg/kg b.i.d. Compound 25, also known as AZD8835, is currently in phase I clinical trials. (C) 2015 Elsevier Ltd. All rights reserved.