Synthesis of benzofuran analogs of fenamates as non steroidal antiinflammatory agents

A series of benzofuran analogs of anthranilic acid derivatives are synthesized. All the new compounds have been characterized by spectral data and elemental analyses and screened for antiinflammatory activity. Compounds 3e, 4e, 4g and 5g are found to possess antiinflammatory activity comparable to that of standard diclofenac sodium.