Local Anesthetics: SAR of Local anesthetics Benzoic Acid derivatives ; Cocaine, Hexylcaine, Meprylcaine, Cyclomethycaine,Piperocaine. Amino Benzoic acid derivatives : Benzocaine*, Butamben, Procaine*, Butacaine,Propoxycaine, Tetracaine, Benoxinate. Lidocaine/Anilide derivatives : Lignocaine, Mepivacaine, Prilocaine, Etidocaine. Miscellaneous : Phenacaine, Diperodon, Dibucaine.* Please follow the link Local Anesthetics