Strategic use of conformational bias and structure based design to identify potent JAK3 inhibitors with improved selectivity against the JAK family and the kinome
作者:Stephen M. Lynch、Javier DeVicente、Johannes C. Hermann、Saul Jaime-Figueroa、Sue Jin、Andreas Kuglstatter、Hongju Li、Allen Lovey、John Menke、Linghao Niu、Vaishali Patel、Douglas Roy、Michael Soth、Sandra Steiner、Parcharee Tivitmahaisoon、Minh Diem Vu、Calvin Yee
DOI:10.1016/j.bmcl.2013.02.012
日期:2013.5
Using a structure based design approach we have identified a series of indazole substituted pyrrolopyrazines, which are potent inhibitors of JAK3. Intramolecular electronic repulsion was used as a strategy to induce a strong conformational bias within the ligand. Compounds bearing this conformation participated in a favorable hydrophobic interaction with a cysteine residue in the JAK3 binding pocket, which imparted high selectivity versus the kinome and improved selectivity within the JAK family. (C) 2013 Published by Elsevier Ltd.