Optimization of Novel Indazoles as Highly Potent and Selective Inhibitors of Phosphoinositide 3-Kinase δ for the Treatment of Respiratory Disease
作者:Kenneth Down、Augustin Amour、Ian R. Baldwin、Anthony W. J. Cooper、Angela M. Deakin、Leigh M. Felton、Stephen B. Guntrip、Charlotte Hardy、Zoë A. Harrison、Katherine L. Jones、Paul Jones、Suzanne E. Keeling、Joelle Le、Stefano Livia、Fiona Lucas、Christopher J. Lunniss、Nigel J. Parr、Ed Robinson、Paul Rowland、Sarah Smith、Daniel A. Thomas、Giovanni Vitulli、Yoshiaki Washio、J. Nicole Hamblin
DOI:10.1021/acs.jmedchem.5b00767
日期:2015.9.24
Optimization of lead compound 1, through extensive use of structure-based design and a focus on PI3K delta potency, isoform selectivity, and inhaled PK properties, led to the discovery of clinical candidates 2 (GSK2269557) and 3 (G5K2292767) for the treatment of respiratory indications via inhalation. Compounds 2 and 3 are both highly selective for PI3K delta over the closely related isoforms and are active in a disease relevant brown Norway rat acute OVA model of Th2-driven lung inflammation.