In the present study, a series of chalcone derivatives were designed based on QSAR analysis. The designed compounds were synthesized by Claisen Schmidt condensation and evaluated for anti-inflammatory, antioxidant and antiulcer activities. The results of the best 2D & 3D QSAR models suggested that by introducing electron releasing groups at R2 and introducing heteroatom with increasing bulkiness at R4 in the benzylideneacetophenone ...