Influence of Lipophilicity on the Antimycobacterial Activity of the Hydrochlorides of Piperidinylethyl Esters of Ortho-Substituted Phenylcarbamic Acids

A series of 14 hydrochlorides of piperidinylethyl esters of orthosubstituted phenylcarbamic acids were evaluated for in vitro antimycobacterial activity against the strains of Mycobacterium tuberculosis, Mycobactenum kansasii and Mycobactenum avium. In vitro antimycobacterial activrty becomes higher with increasing hydrophobicity of the substituents. The alkoxy group is not necessary in order for the basic ethyl esters of phenylcarbamic acids to display antimycobacterial activity.