We have previously reported the discovery of a new class of potent inhibitors of 17β- hydroxysteroid dehydrogenase type 3 (17β-HSD3) derived from benzylidene oxazolidinedione and thiazolidinedione scaffolds. In this study, these analogs were designed, synthesized, and evaluated in a human cell-based assay. The detailed structure– activity relationship (SAR) surrounding this pharmacophore were developed, and ...