摘要:
The discovery, synthesis and in vitro activity of a novel series of rhodanine based phosphodiesterase-4 (PDE4) inhibitors is described. Structure-activity relationship studies directed toward improving potency led to the development of submicromolar inhibitors 2n and 3i ( IC50 = 0.89 & 0.74 mu M). The replacement of rhodanine with structurally related heterocycles was also investigated and led to the synthesis of pseudothiohydantoin 7 ( IC50 = 0.31 mu M). (c) 2008 Elsevier Ltd. All rights reserved.