Studies on the Inhibition of Moloney Murine Leukemia Virus Reverse Transcriptase by N-Tritylamino Acids and N-Tritylamino Acid-Nucleotide Compounds
作者:Arthur Hawtrey、Anton Pieterse、Johann van Zyl、Pieter Van der Bijl、Marichen Van der Merwe、William Nel、Mario Ariatti
DOI:10.1080/15257770802271698
日期:2008.8.28
N-Acylated derivatives of 8-(6-aminohexyl) amino-adenosine-5'-phosphate were prepared and studied with regard to their effect on DNA synthesis by the Moloney leukemia virus reverse transcriptase. N-palmitoyl and N-nicotinyl derivatives and bis-8-(6-aminohexyl) amino-5'-AMP inhibited the enzyme partially using poly (rA).oligo d(pT)(16-18) as template-primer with [H-3]dTTP. In order to increase hydrophobicity in the acyl component tethered to the 8-(6-aminohexyl) amino group on the adenine nucleotide, N-trityl-L-phenylalanine and the N-trityl derivatives of the o, m, and p-fluoro-DL-phenylalanine were initially examined for inhibition of the enzyme using the above template-primer system. The compounds all inhibited the reverse transcriptase with IC50 values of approximately 60-80 mu M. However, when N-trityl-m-fluoro-DL-phenylalanine was coupled to the nucleotide 8-(6-aminohexyl) amino-adenosine-5'-phosphate, the inhibitory activity of this compound increased significantly (IC50 = 5 mu M).