A number of novel 1-(3-arylprop-2-ynyl) substituted 1,2-dihydroquinoline derivatives related to nimesulide and their 2-oxo analogues have been designed as potential inhibitors of PDE4. All these compounds were synthesized by using Sonogashira coupling as a key step. In vitro PDE4B inhibitory properties and molecular modeling studies of some of the compounds synthesized are presented.
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