Relationships between Structure and Cytotoxicity of Thiourea Derivatives

Abstract

The relations between the chem structure of the title compds. (I; R1 = Cl, OH, Me, NHAc, OMe; R2 = H, Cl, Me, OMe, NO2; R3 = alkyl or Ph; n = 1 or 2) and their cytotoxicity were studied by the technique of discriminant anal. To est. the effects of substituents in the substituted Ph ring on cytotoxicity, the hydrophobic substituent const., the Hammett const., and Taft's steric const. were used. The cytotoxicity depended on the hydrophobicity of the substituted Ph ring, on the size of the substituents in the para position, and on the nature of R3.