Determination and correlation of the reversed-phase thin-layer chromatographic parameter (Rm) of a series of 3-(4-substituted-1-piperazinyl)-1-substituted-1-phenyl propanol derivatives with their LD50 values.

The experimental Rm values of four series of 3-(4-substituted-1- piperazinyl)-1-substituted-1-phenyl propanol derivatives, previously prepared for quantitative structure-activity relationship studies, were determined using reversed-phased thin-layer chromatography. The Rm values were determined for various concentrations of acetone in water (50, 60, 70, 80 and 90%), and the obtained correlation lines of Rm against proportion of acetone were extrapolated to 100% water The extrapolated Rm values of two of the four series of the 3-(4-benzyl-1-piperazinyl)-1-phenyl propanol derivatives were correlated with LD50 values obtained from 24-hour acute toxicity studies in albino mice. The extrapolated Rm values correlated parabolically with the LD50s.