Design, synthesis and biological evaluation of novel condensed pyrrolo[1,2-c]pyrimidines featuring morpholine moiety as PI3Kα inhibitors
作者:Marwa A. Ibrahim、Sahar M. Abou-Seri、Mona M. Hanna、Mohamed M. Abdalla、Nehad A. El Sayed
DOI:10.1016/j.ejmech.2015.05.036
日期:2015.6
Four series of condensed pyrrolo[1,2-c]pyrimidines 6a-d, 8a-d, 10a,b and 12a-e designed as PI3K alpha inhibitors were synthesized and evaluated for inhibitory activity and selectivity toward different PI3K isoforms. The tested compounds displayed PI3K alpha kinase inhibitory activity at either low micromolar or nanomolar level. In particular, the morpholino-pyrimidopyrrolopyrimidinones 8a-d and morpholinopyridopyrrolopyrimidine-2-carbonitriles 12a-e proved to be highly potent and selective PI3K alpha inhibitors (IC50 = 0.1-7.7 nM). Moreover, the target compounds exhibited considerable cytotoxic activity against cervical cancer cell line HeLa that over-expresses p110 alpha (0.21-1.99 mu M). Molecular modeling simulation revealed that, the designed compounds docked well into p110 alpha active site and their complexes are stabilized by a key H-bonding with the backbone amide of VaI851 as well as other favorable hydrophobic and H-bond interactions with different amino acids within the enzyme active site. (C) 2015 Elsevier Masson SAS. All rights reserved.