Discovery of Clinical Candidate 1-{[(2<i>S</i>,3<i>S</i>,4<i>S</i>)-3-Ethyl-4-fluoro-5-oxopyrrolidin-2-yl]methoxy}-7-methoxyisoquinoline-6-carboxamide (PF-06650833), a Potent, Selective Inhibitor of Interleukin-1 Receptor Associated Kinase 4 (IRAK4), by Fragment-Based Drug Design
作者:Katherine L. Lee、Catherine M. Ambler、David R. Anderson、Brian P. Boscoe、Andrea G. Bree、Joanne I. Brodfuehrer、Jeanne S. Chang、Chulho Choi、Seungwon Chung、Kevin J. Curran、Jacqueline E. Day、Christoph M. Dehnhardt、Ken Dower、Susan E. Drozda、Richard K. Frisbie、Lori K. Gavrin、Joel A. Goldberg、Seungil Han、Martin Hegen、David Hepworth、Heidi R. Hope、Satwik Kamtekar、Iain C. Kilty、Arthur Lee、Lih-Ling Lin、Frank E. Lovering、Michael D. Lowe、John P. Mathias、Heidi M. Morgan、Elizabeth A. Murphy、Nikolaos Papaioannou、Akshay Patny、Betsy S. Pierce、Vikram R. Rao、Eddine Saiah、Ivan J. Samardjiev、Brian M. Samas、Marina W. H. Shen、Julia H. Shin、Holly H. Soutter、Joseph W. Strohbach、Peter T. Symanowicz、Jennifer R. Thomason、John D. Trzupek、Richard Vargas、Fabien Vincent、Jiangli Yan、Christoph W. Zapf、Stephen W. Wright
DOI:10.1021/acs.jmedchem.7b00231
日期:2017.7.13
engaging the active site of IRAK4 and leveraging three-dimensional topology in a ligand-efficient manner, a micromolar hit identified from a screen of a Pfizer fragment library was optimized to afford IRAK4 inhibitors with nanomolar potency in cellular assays. The medicinal chemistry effort featured the judicious placement of lipophilicity, informed by co-crystal structures with IRAK4 and optimization of ADME
通过专注于结合IRAK4活性位点并利用配体有效方式利用三维拓扑结构的基于片段的药物设计,优化了从辉瑞片段文库筛选中鉴定出的微摩尔峰,从而为IRAK4抑制剂提供了在细胞内具有纳摩尔效价的抑制剂分析。药物化学努力的特征是,亲油性的明智定位,其与IRAK4的共晶体结构和ADME性质的优化可提供临床候选药物PF-06650833(化合物40)。该化合物的片段命中,亲脂效率提高了5个单位,具有出色的激酶选择性和适合口服的药代动力学特性。