The present invention provides a novel compoundrepresented by Formula (I) or a salt thereof havingplasminogen activator inhibitor-1 inhibitory activity, and aninhibitor of PAI-1 comprising the compound as an activeingredient. The present invention also provides apharmaceutical composition having an inhibitory action onPAI-1 activity and being efficacious in the prevention andtreatment of various diseases whose onset is associated withPAI-1 activity.(See Formula I)