Synthesis and Biological Activity of Hydrazones of o- and p-Hydroxybenzoic Acids. Spatial Structure of 5-Bromo-2-hydroxybenzylidene-4-hydroxybenzohydrazide

Abstract

A series of hydrazones based on hydrazides of o- and p-hydroxybenzoic acids have been prepared. N-(5-Bromo-2-hydroxybenzylidene)-4-hydroxybenzohydrazide has been studied by X-ray diffraction analysis; its molecule forms hydrogen bond with a solvating ethanol molecule. Biological activity of the synthesized hydrazones towards cathepsin E and(or) elastase of human neutrophils has been determined.