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Hydroxamic acids have low toxicities and show wide range of biological activities due to their chelating properties with metal ions [1]. Hydroxamic acids and their derivatives also are weak organic acids with different applications [2] such as: anti-malarial drugs [3], tumour inhibitor drugs [4], enzyme inhibitors [5], growth factors [6], cell-division factors [7] and also as metal chelators [8-10]. One of the earliest reports on the biological properties of hydroxamic acids goes back to 1950, when the anti-tubercular effects of some salicylhydroxamic acid derivatives were