Relationships Between the Surface Activity and Cholinesterase Inhibition of Mono- and bis[3-(N,N-Diethylcarbamoyl)piperidino]alkanes

Surface activity and human blood platelet aggregation-inhibitory potency

Surface and interfacial activity is correlated with molecular constitution and inhibitory potency of mono- and bis(carbamoylpiperidino)alkanes and aralkanes, and of some corresponding quaternary pyridinium congeners, in ADP-induced human blood platelet aggregation. The measurements of surface and interfacial tension were carried out at concentrations and pH-values approximating those employed in the hemodynamic study. The effect of changes in chemical structure, ranging from relatively minor variations in a specific functional group to the alteration of major components in molecular constitution, was examined and interpreted in terms of contemporary theoretical chemistry.

Surface-chemical studies on chlorhexidine and related compounds: I. Effects at air-water, n-hexane-water, and hydroxyapatite-water interfaces

The comparative ability of chlorhexidine diacetate and structurally related compounds to generate surface pressure at air-water and n-hexane-water interfaces, and to adsorb to hydroxyapatite, was determined. The order of effectiveness generally evident was 1-(p-chlorophenyl)-5-n-octylbiguanide acetate is greater than chlorhexidine diacetate 1-(p-chlorophenyl)-5-n-hexylbiguanide acetate is greater than 1-(p-chlorophenyl)-5-n-propylbiguanide acetate is greater than p-chlorophenylbiguanide acetate p-chlorophenylguanidine acetate.