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13 Hydroxamic acids are capable of inhibiting a variety of enzymes, including ureases, 14, 15 peroxidises 16, and matrix metalloproteinases.
17, 18 These class of compounds are used in the design of therapeutics targeting cancer 19, 20 e.g.
There are many more general synthetic routes that have been reported and cannot be described for lack of space but are mentioned in this review.
White et al 38 reported the synthesis of hydroxamates using Deoxo-fluor; Katritzky et al 39 reported the synthesis of N-alkyl, O-alkyl and O, N-dialkyl hydroxamic acids via acyl benzotriazole intermediates; Gissot et al 40 reported high yielding one step synthesis of hydoxamates from various un-activated esters including enolizable esters and chrial α-amino acid esters and peptides ; Woo et al 41 reported the conversion of sterically hindered carboxylic acids to N-methoxy-N-methyl amides using 1.1eq of methanesulphonyl chloride; Martinelli et al 42 reported the palladium catalysed amino carbonylation of anyl bromides into the corresponding Weinreb amides; Nemoto et al 43 also reported a one pot synthesis of α-siloxy weinreb amides from aldelydes using N, O-dimethly amine and a masked acyl cyamide reagent bearing a tert-butyl dimethyl silyl group. Synthesis of Anticancer Hydroxamates Most hydroxamates used in cancer chemotherapy acts as histone deacetylase HDAC inhibitors.