HDAC performs the reverse process of histone acetyl co A to the lysines on the histone, inducing a state known as hyper acetylation.
A simple synthetic procedure allows the conversion of a wide variety of carboxylic acid to hydroxamates. Synthesis of Weinreb Amides Using Triazime Intermediates De Luca et al 37 reported the successful large scale synthesis of weinreb amide through a convenient and simple one-flask method via 2-chloro-4,6-dimethoxy-1,3,5-triazine intermediate 20.
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The syntheses of various classes of hydroxamates and their mode of biological applications have been reviewed. 4 Much of their activities are due to their chelating properties with metal ions, especially with transition metals, hence constituting a very important class of chelating agents with versatile biological activities.
The broad biological activities of hydroxamates and the need to improve on their synthetic routes informed the review of their synthesis and biological applications. 5, 6 A number of synthetic routes are available for the preparation of hydroxamic acids, 7-12 but some are tedious, time consuming and costly as well. Colombo, An improved synthesis of the HDAC inhibitorn trichostatin A, Master s Theses and Doctoral Dissertations, Eastern Michigan University, 2009, 1-2. To achieve this, the ester 0.5 M in methanol and hydroxyl amine 10 eq was reacted in the presence of sodium methoxide 1 eq.