Discovery of 6-(2,4-Difluorophenoxy)-2-[3-hydroxy-1-(2-hydroxyethyl)propylamino]-8-methyl-8<i>H</i>-pyrido[2,3-<i>d</i>]pyrimidin-7-one (Pamapimod) and 6-(2,4-Difluorophenoxy)-8-methyl-2-(tetrahydro-2<i>H</i>-pyran-4-ylamino)pyrido[2,3-<i>d</i>]pyrimidin-7(8<i>H</i>)-one (R1487) as Orally Bioavailable and Highly Selective Inhibitors of p38α Mitogen-Activated Protein Kinase
作者:David M. Goldstein、Michael Soth、Tobias Gabriel、Nolan Dewdney、Andreas Kuglstatter、Humberto Arzeno、Jeffrey Chen、William Bingenheimer、Stacie A. Dalrymple、James Dunn、Robert Farrell、Sandra Frauchiger、JoAnn La Fargue、Manjiri Ghate、Bradford Graves、Ronald J. Hill、Fujun Li、Renee Litman、Brad Loe、Joel McIntosh、Daniel McWeeney、Eva Papp、Jaehyeon Park、Harlan F. Reese、Richard T. Roberts、David Rotstein、Bong San Pablo、Keshab Sarma、Martin Stahl、Man-Ling Sung、Rebecca T. Suttman、Eric B. Sjogren、Yunchou Tan、Alejandra Trejo、Mary Welch、Paul Weller、Brian R. Wong、Hasim Zecic
DOI:10.1021/jm101423y
日期:2011.4.14
The development of a new series of p38 alpha inhibitors resulted in the identification of two clinical candidates, one of which was advanced into a phase 2 clinical study for rheumatoid arthritis. The original lead, an lck inhibitor that also potently inhibited p38a, was a screening hit from our kinase inhibitor library. This manuscript describes the optimization of the lead to p38-selective examples with good pharmacokinetic properties.