 By replacing the oxygen atom with a sulfur atom at the C2 position of the imidazole ring and adding butylalcohol to the N3 atom, the receptor binding and biological activity of the compound increases 100 times that of NSAAs.Also the compound does not bind to other steroid receptors.If a methyl group is changed for the butylalcohol group, the compound shows 3 and 10 times more antiandrogenic activity "in vivo" than bicalutamide and nilutamide, respectively.