The aim of this research is to design the new mono-carbonyl analogs of curcumin, synthesize the molecules, and determine its activity in cyclooxygenase inhibition in vitro and in silico. New design MACs were performed by the Quantitative Structure-Activity Relationship (QSAR) study using the BuildQSAR program. 2,6-bis-(3ʹ-ethoxy, 4ʹ-hydroxybenzylidene)-cyclohexanone, 2,6-bis-(3ʹ-Bromo, 4ʹ-methoxybenzylidene)-cyclohexanone, and 2,6-bis-(3ʹ,4ʹ-dimethoxybenzylidene)-cyclohexanone had been synthesized using aldol condensation reaction. The anti-inflammatory assay was performed to measure the level of malondialdehyde. In silico studies were carried out to evaluate the activity of cyclooxygenase inhibition in cyclooxygenase-1 and cyclooxygenase-2 specific proteins. Molecular operating environment program was used for protocol docking. The results of the QSAR study reveal the good relationship of anti-inflammatory activities. The in vitro anti-inflammatory activities of 6-bis-(3ʹ-ethoxy, 4ʹ-hydroxybenzylidene)cyclohexanone, 2,6-bis-(3ʹ-Bromo, 4ʹ-methoxybenzylidene)-cyclohexanone, and 2,6-bis-(3ʹ,4ʹ-dimethoxybenzylidene)cyclohexanone indicate the promising potential to inhibit cyclooxygenase enzyme with IC 50 13.53 μM, 11.56 μM, and 20.52 μM, respectively. The in silico evaluation showing that O atoms (47, from ketones) of 2,6-bis-(3ʹ-Bromo, 4ʹ-methoxybenzylidene)-cyclohexanone interact with ARG120 and TYR355 through H acceptor.