Identification, synthesis and SAR of amino substituted pyrido[3,2b]pyrazinones as potent and selective PDE5 inhibitors
作者:Dafydd R. Owen、John K. Walker、E. Jon Jacobsen、John N. Freskos、Robert O. Hughes、David L. Brown、Andrew S. Bell、David G. Brown、Christopher Phillips、Brent V. Mischke、John M. Molyneaux、Yvette M. Fobian、Steve E. Heasley、Joseph B. Moon、William C. Stallings、D. Joseph Rogier、David N.A. Fox、Michael J. Palmer、Tracy Ringer、Margarita Rodriquez-Lens、Jerry W. Cubbage、Radhika M. Blevis-Bal、Alan G. Benson、Brad A. Acker、Todd M. Maddux、Michael B. Tollefson、Brian R. Bond、Alan MacInnes、Yung Yu
DOI:10.1016/j.bmcl.2009.06.012
日期:2009.8
A new class of potent and selective PDE5 inhibitors is disclosed. Guided by X-ray crystallographic data, optimization of an HTS lead led to the discovery of a series of 2-aryl, (N8)-alkyl substituted-6-aminosubstituted pyrido[3,2b]pyrazinones which show potent inhibition of the PDE5 enzyme. Synthetic details and some structure-activity relationships are also presented. (C) 2009 Elsevier Ltd. All rights reserved.