alexa Fmoc solid phase synthesis of polyamides containing pyrrole and imidazole amino acids.
Medicine

Medicine

Advanced Techniques in Biology & Medicine

Author(s): Wurtz NR, Turner JM, Baird EE, Dervan PB, Wurtz NR, Turner JM, Baird EE, Dervan PB

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Abstract [structure: see text]. Polyamides containing N-methylimidazole (Im) and N-methylpyrrole (Py) amino acids are synthetic ligands that have an affinity and specificity for DNA comparable to those of many naturally occurring DNA binding proteins. A machine-assisted Fmoc solid phase synthesis of polyamides has been optimized to afford high stepwise coupling yields (>99\%). Two monomer building blocks, Fmoc-Py acid and Fmoc-Im acid, were prepared in multigram scale. Cleavage by aminolysis followed by HPLC purification affords up to 200 mg quantities of polyamide with purities and yields greater than or equal to those reported using Boc chemistry. A broader set of reaction conditions will increase the number and complexity of minor groove binding polyamides which may be prepared and help ensure compatibility with many commercially available peptide synthesizers.
This article was published in Org Lett and referenced in Advanced Techniques in Biology & Medicine

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