Synthesis of some New Azo Compounds of Salicylic Acid Derivatives and Determination of their In vitro Anti-inflammatory Activity

This study included the preparation of a series of some new azo compounds by diazo coupling aromatic amines with salicylic acid derivatives. The prepared compounds identified using precise elemental analysis (C.H.N), the results supported the structure of concerned compounds. The synthesized azo compounds also identified by using infrared spectroscopy and 1H-NMR spectroscopy. Anti-inflammatory activity of the compounds were determined in-vitro by human red blood cell (HRBC) membrane stability method, the compounds showed a significant activity to protection of the cell membrane. Other compounds show moderate to low activity, sodium diclofenac was used as positive control.