Synthesis and assembly studies of a novel guanosine-cytidine dinucleotide

ORGN 561

Jonathan L. Sessler, Janarthanan Jayawickramarajah, and Muhunthan Sathiosatham. Department of Chemistry and Biochemistry and Institute of Cellular and Molecular Biology, The University of Texas at Austin, 1 University Station - A5430, Austin, TX 78712
In a continuation of our work to assemble supramolecular structures using modified nucleotide analogs, we present the synthesis and assembly studies of a novel guanosine-cytidine dinucleotide 1. This dinucleotide was prepared via, mild, consecutive Stille and Heck cross-coupling reactions. Ensemble I was characterized by ESI-MS, NMR spectroscopies, size exclusion chromatography (SEC), and by vapor pressure osmometry (VPO).