Abstract According to a three-point pharmacophore for some uro-selective α 1-adrenoceptor (AR) antagonists, a novel class of coumarin (= 2H-1-benzopyran-2-one) derivatives have been successfully designed and synthesized with high efficacies for α 1-AR. These synthesized coumarin derivatives exhibited high efficacies towards α 1-AR in in vitro pharmacological assays. Compared with prazosin (pK i value of 8.77), among those ...