<prompt> Which of the following NSAID is an anthranilic acid derivative?Mefenamic acidSulindacNimesulideDiclofenac  <response>: Mefenamic acid and meclofenamate are N-substituted phenyl anthranilic acids. Sulindac is an indole derivative. Nimesulide is a sulfonanilide derivative Diclofenac is an aryl - acetic acid derivative. Ref: Grosser T., Smyth E. 2011. Chapter 34. Anti-inflammatory, Antipyretic, and Analgesic Agents; Pharmacotherapy of Gout. In L.L. Brunton, B.A. Chabner, B.C. Knollmann Eds, Goodman Gilmans The Pharmacological Basis of Therapeutics, 12e. 